Home / 77,565,685.72-107,041,384.50-42,759,624.52

Finding the Fourth Proportional to 77,565,685.72, 107,041,384.50 and 42,759,624.52

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Solution

The fourth proportional to 77,565,685.72, 107,041,384.50 and 42,759,624.52 is: 59,008,688.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,565,685.72 : 107,041,384.50 = 42,759,624.52 : x
  2. Step 2: Convert to fraction form
    77,565,685.72/107,041,384.50 = 42,759,624.52/x
  3. Step 3: Cross multiply
    77,565,685.72x = 107,041,384.50 × 42,759,624.52
  4. Step 4: Simplify right side
    77,565,685.72x = 4,577,049,409,320,948
  5. Step 5: Solve for x
    x = 4,577,049,409,320,948/77,565,685.72
  6. Step 6: Final answer
    x = 59,008,688.79

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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.