Home / 75,316,663.60-112,974,995.40-20,729,143.60

Finding the Fourth Proportional to 75,316,663.60, 112,974,995.40 and 20,729,143.60

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Solution

The fourth proportional to 75,316,663.60, 112,974,995.40 and 20,729,143.60 is: 31,093,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,316,663.60 : 112,974,995.40 = 20,729,143.60 : x
  2. Step 2: Convert to fraction form
    75,316,663.60/112,974,995.40 = 20,729,143.60/x
  3. Step 3: Cross multiply
    75,316,663.60x = 112,974,995.40 × 20,729,143.60
  4. Step 4: Simplify right side
    75,316,663.60x = 2,341,874,902,855,939.50
  5. Step 5: Solve for x
    x = 2,341,874,902,855,939.50/75,316,663.60
  6. Step 6: Final answer
    x = 31,093,715.40

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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.