Home / 145,002,531.59-200,120,532.74-81,433,317.93

Finding the Fourth Proportional to 145,002,531.59, 200,120,532.74 and 81,433,317.93

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Solution

The fourth proportional to 145,002,531.59, 200,120,532.74 and 81,433,317.93 is: 112,387,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,002,531.59 : 200,120,532.74 = 81,433,317.93 : x
  2. Step 2: Convert to fraction form
    145,002,531.59/200,120,532.74 = 81,433,317.93/x
  3. Step 3: Cross multiply
    145,002,531.59x = 200,120,532.74 × 81,433,317.93
  4. Step 4: Simplify right side
    145,002,531.59x = 16,296,478,967,140,980
  5. Step 5: Solve for x
    x = 16,296,478,967,140,980/145,002,531.59
  6. Step 6: Final answer
    x = 112,387,547.91

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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.