Home / 158,068,023.57-218,136,455.05-86,539,711.83

Finding the Fourth Proportional to 158,068,023.57, 218,136,455.05 and 86,539,711.83

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Solution

The fourth proportional to 158,068,023.57, 218,136,455.05 and 86,539,711.83 is: 119,426,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,068,023.57 : 218,136,455.05 = 86,539,711.83 : x
  2. Step 2: Convert to fraction form
    158,068,023.57/218,136,455.05 = 86,539,711.83/x
  3. Step 3: Cross multiply
    158,068,023.57x = 218,136,455.05 × 86,539,711.83
  4. Step 4: Simplify right side
    158,068,023.57x = 18,877,465,959,212,048
  5. Step 5: Solve for x
    x = 18,877,465,959,212,048/158,068,023.57
  6. Step 6: Final answer
    x = 119,426,216.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.