Home / 42,768,045.90-64,152,068.85-12,475,908.90

Finding the Fourth Proportional to 42,768,045.90, 64,152,068.85 and 12,475,908.90

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Solution

The fourth proportional to 42,768,045.90, 64,152,068.85 and 12,475,908.90 is: 18,713,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,045.90 : 64,152,068.85 = 12,475,908.90 : x
  2. Step 2: Convert to fraction form
    42,768,045.90/64,152,068.85 = 12,475,908.90/x
  3. Step 3: Cross multiply
    42,768,045.90x = 64,152,068.85 × 12,475,908.90
  4. Step 4: Simplify right side
    42,768,045.90x = 800,355,366,719,127.75
  5. Step 5: Solve for x
    x = 800,355,366,719,127.75/42,768,045.90
  6. Step 6: Final answer
    x = 18,713,863.35

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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.