Home / 1,105,909,109.21-1,658,852,302.05-639,273,615.53

Finding the Fourth Proportional to 1,105,909,109.21, 1,658,852,302.05 and 639,273,615.53

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Solution

The fourth proportional to 1,105,909,109.21, 1,658,852,302.05 and 639,273,615.53 is: 958,903,855.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,909,109.21 : 1,658,852,302.05 = 639,273,615.53 : x
  2. Step 2: Convert to fraction form
    1,105,909,109.21/1,658,852,302.05 = 639,273,615.53/x
  3. Step 3: Cross multiply
    1,105,909,109.21x = 1,658,852,302.05 × 639,273,615.53
  4. Step 4: Simplify right side
    1,105,909,109.21x = 1,060,460,508,753,472,768
  5. Step 5: Solve for x
    x = 1,060,460,508,753,472,768/1,105,909,109.21
  6. Step 6: Final answer
    x = 958,903,855.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.