Home / 154,666,711.59-213,387,826.32-87,678,487.41

Finding the Fourth Proportional to 154,666,711.59, 213,387,826.32 and 87,678,487.41

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Solution

The fourth proportional to 154,666,711.59, 213,387,826.32 and 87,678,487.41 is: 120,966,700.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,666,711.59 : 213,387,826.32 = 87,678,487.41 : x
  2. Step 2: Convert to fraction form
    154,666,711.59/213,387,826.32 = 87,678,487.41/x
  3. Step 3: Cross multiply
    154,666,711.59x = 213,387,826.32 × 87,678,487.41
  4. Step 4: Simplify right side
    154,666,711.59x = 18,709,521,843,445,384
  5. Step 5: Solve for x
    x = 18,709,521,843,445,384/154,666,711.59
  6. Step 6: Final answer
    x = 120,966,700.92

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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.