Home / 520,854,417.69-718,779,883.85-282,699,687.65

Finding the Fourth Proportional to 520,854,417.69, 718,779,883.85 and 282,699,687.65

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Solution

The fourth proportional to 520,854,417.69, 718,779,883.85 and 282,699,687.65 is: 390,125,996.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,854,417.69 : 718,779,883.85 = 282,699,687.65 : x
  2. Step 2: Convert to fraction form
    520,854,417.69/718,779,883.85 = 282,699,687.65/x
  3. Step 3: Cross multiply
    520,854,417.69x = 718,779,883.85 × 282,699,687.65
  4. Step 4: Simplify right side
    520,854,417.69x = 203,198,848,648,490,880
  5. Step 5: Solve for x
    x = 203,198,848,648,490,880/520,854,417.69
  6. Step 6: Final answer
    x = 390,125,996.34

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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.