Home / 459,011,471.52-688,516,786.56-143,879,766.96

Finding the Fourth Proportional to 459,011,471.52, 688,516,786.56 and 143,879,766.96

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Solution

The fourth proportional to 459,011,471.52, 688,516,786.56 and 143,879,766.96 is: 215,819,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,011,471.52 : 688,516,786.56 = 143,879,766.96 : x
  2. Step 2: Convert to fraction form
    459,011,471.52/688,516,786.56 = 143,879,766.96/x
  3. Step 3: Cross multiply
    459,011,471.52x = 688,516,786.56 × 143,879,766.96
  4. Step 4: Simplify right side
    459,011,471.52x = 99,063,634,798,300,864
  5. Step 5: Solve for x
    x = 99,063,634,798,300,864/459,011,471.52
  6. Step 6: Final answer
    x = 215,819,518.56

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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.