Home / 56,922,966.42-78,553,143.81-30,816,814.74

Finding the Fourth Proportional to 56,922,966.42, 78,553,143.81 and 30,816,814.74

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Solution

The fourth proportional to 56,922,966.42, 78,553,143.81 and 30,816,814.74 is: 42,526,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,922,966.42 : 78,553,143.81 = 30,816,814.74 : x
  2. Step 2: Convert to fraction form
    56,922,966.42/78,553,143.81 = 30,816,814.74/x
  3. Step 3: Cross multiply
    56,922,966.42x = 78,553,143.81 × 30,816,814.74
  4. Step 4: Simplify right side
    56,922,966.42x = 2,420,757,680,037,347.50
  5. Step 5: Solve for x
    x = 2,420,757,680,037,347.50/56,922,966.42
  6. Step 6: Final answer
    x = 42,526,906.66

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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.