Home / 85,164,007.20-127,746,010.80-30,602,731.20

Finding the Fourth Proportional to 85,164,007.20, 127,746,010.80 and 30,602,731.20

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Solution

The fourth proportional to 85,164,007.20, 127,746,010.80 and 30,602,731.20 is: 45,904,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164,007.20 : 127,746,010.80 = 30,602,731.20 : x
  2. Step 2: Convert to fraction form
    85,164,007.20/127,746,010.80 = 30,602,731.20/x
  3. Step 3: Cross multiply
    85,164,007.20x = 127,746,010.80 × 30,602,731.20
  4. Step 4: Simplify right side
    85,164,007.20x = 3,909,376,830,384,697
  5. Step 5: Solve for x
    x = 3,909,376,830,384,697/85,164,007.20
  6. Step 6: Final answer
    x = 45,904,096.80

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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.