Home / 85,164,005.70-127,746,008.55-30,602,729.70

Finding the Fourth Proportional to 85,164,005.70, 127,746,008.55 and 30,602,729.70

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Solution

The fourth proportional to 85,164,005.70, 127,746,008.55 and 30,602,729.70 is: 45,904,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164,005.70 : 127,746,008.55 = 30,602,729.70 : x
  2. Step 2: Convert to fraction form
    85,164,005.70/127,746,008.55 = 30,602,729.70/x
  3. Step 3: Cross multiply
    85,164,005.70x = 127,746,008.55 × 30,602,729.70
  4. Step 4: Simplify right side
    85,164,005.70x = 3,909,376,569,909,538.50
  5. Step 5: Solve for x
    x = 3,909,376,569,909,538.50/85,164,005.70
  6. Step 6: Final answer
    x = 45,904,094.55

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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.