Home / 386,308,240.68-579,720,666.95-165,031,292.42

Finding the Fourth Proportional to 386,308,240.68, 579,720,666.95 and 165,031,292.42

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Solution

The fourth proportional to 386,308,240.68, 579,720,666.95 and 165,031,292.42 is: 247,657,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,308,240.68 : 579,720,666.95 = 165,031,292.42 : x
  2. Step 2: Convert to fraction form
    386,308,240.68/579,720,666.95 = 165,031,292.42/x
  3. Step 3: Cross multiply
    386,308,240.68x = 579,720,666.95 × 165,031,292.42
  4. Step 4: Simplify right side
    386,308,240.68x = 95,672,050,911,204,768
  5. Step 5: Solve for x
    x = 95,672,050,911,204,768/386,308,240.68
  6. Step 6: Final answer
    x = 247,657,287.21

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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.