Home / 28,118,737.40-42,162,933.14-12,757,643

Finding the Fourth Proportional to 28,118,737.40, 42,162,933.14 and 12,757,643

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Solution

The fourth proportional to 28,118,737.40, 42,162,933.14 and 12,757,643 is: 19,129,580.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118,737.40 : 42,162,933.14 = 12,757,643 : x
  2. Step 2: Convert to fraction form
    28,118,737.40/42,162,933.14 = 12,757,643/x
  3. Step 3: Cross multiply
    28,118,737.40x = 42,162,933.14 × 12,757,643
  4. Step 4: Simplify right side
    28,118,737.40x = 537,899,648,832,989
  5. Step 5: Solve for x
    x = 537,899,648,832,989/28,118,737.40
  6. Step 6: Final answer
    x = 19,129,580.44

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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.