Home / 78,897,270.30-118,345,905.45-36,429,942.30

Finding the Fourth Proportional to 78,897,270.30, 118,345,905.45 and 36,429,942.30

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Solution

The fourth proportional to 78,897,270.30, 118,345,905.45 and 36,429,942.30 is: 54,644,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,897,270.30 : 118,345,905.45 = 36,429,942.30 : x
  2. Step 2: Convert to fraction form
    78,897,270.30/118,345,905.45 = 36,429,942.30/x
  3. Step 3: Cross multiply
    78,897,270.30x = 118,345,905.45 × 36,429,942.30
  4. Step 4: Simplify right side
    78,897,270.30x = 4,311,334,506,984,755.50
  5. Step 5: Solve for x
    x = 4,311,334,506,984,755.50/78,897,270.30
  6. Step 6: Final answer
    x = 54,644,913.45

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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.