Home / 78,732,024.60-118,224,008.10-53,285,842.20

Finding the Fourth Proportional to 78,732,024.60, 118,224,008.10 and 53,285,842.20

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Solution

The fourth proportional to 78,732,024.60, 118,224,008.10 and 53,285,842.20 is: 80,014,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,024.60 : 118,224,008.10 = 53,285,842.20 : x
  2. Step 2: Convert to fraction form
    78,732,024.60/118,224,008.10 = 53,285,842.20/x
  3. Step 3: Cross multiply
    78,732,024.60x = 118,224,008.10 × 53,285,842.20
  4. Step 4: Simplify right side
    78,732,024.60x = 6,299,665,839,868,122
  5. Step 5: Solve for x
    x = 6,299,665,839,868,122/78,732,024.60
  6. Step 6: Final answer
    x = 80,014,020.62

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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.