Home / 1,889,022,567.47-2,607,687,157.02-1,220,293,748.72

Finding the Fourth Proportional to 1,889,022,567.47, 2,607,687,157.02 and 1,220,293,748.72

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Solution

The fourth proportional to 1,889,022,567.47, 2,607,687,157.02 and 1,220,293,748.72 is: 1,684,545,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,022,567.47 : 2,607,687,157.02 = 1,220,293,748.72 : x
  2. Step 2: Convert to fraction form
    1,889,022,567.47/2,607,687,157.02 = 1,220,293,748.72/x
  3. Step 3: Cross multiply
    1,889,022,567.47x = 2,607,687,157.02 × 1,220,293,748.72
  4. Step 4: Simplify right side
    1,889,022,567.47x = 3,182,144,336,328,934,912
  5. Step 5: Solve for x
    x = 3,182,144,336,328,934,912/1,889,022,567.47
  6. Step 6: Final answer
    x = 1,684,545,431.66

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Double scale
Find fourth proportional to 1,889,022,568.47, 2,607,687,158.40 and 1,220,293,749.72
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.