Home / 739,438,422.80-1,020,456,909.80-409,413,590.96

Finding the Fourth Proportional to 739,438,422.80, 1,020,456,909.80 and 409,413,590.96

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Solution

The fourth proportional to 739,438,422.80, 1,020,456,909.80 and 409,413,590.96 is: 565,008,410.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,438,422.80 : 1,020,456,909.80 = 409,413,590.96 : x
  2. Step 2: Convert to fraction form
    739,438,422.80/1,020,456,909.80 = 409,413,590.96/x
  3. Step 3: Cross multiply
    739,438,422.80x = 1,020,456,909.80 × 409,413,590.96
  4. Step 4: Simplify right side
    739,438,422.80x = 417,788,927,861,162,752
  5. Step 5: Solve for x
    x = 417,788,927,861,162,752/739,438,422.80
  6. Step 6: Final answer
    x = 565,008,410.41

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1.5x scale

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.