Home / 1,118,161,561.67-1,543,050,382.06-609,513,128.48

Finding the Fourth Proportional to 1,118,161,561.67, 1,543,050,382.06 and 609,513,128.48

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Solution

The fourth proportional to 1,118,161,561.67, 1,543,050,382.06 and 609,513,128.48 is: 841,121,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,161,561.67 : 1,543,050,382.06 = 609,513,128.48 : x
  2. Step 2: Convert to fraction form
    1,118,161,561.67/1,543,050,382.06 = 609,513,128.48/x
  3. Step 3: Cross multiply
    1,118,161,561.67x = 1,543,050,382.06 × 609,513,128.48
  4. Step 4: Simplify right side
    1,118,161,561.67x = 940,509,465,771,649,920
  5. Step 5: Solve for x
    x = 940,509,465,771,649,920/1,118,161,561.67
  6. Step 6: Final answer
    x = 841,121,263.70

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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.