Home / 478,305,767.01-660,075,948.05-280,048,712.61

Finding the Fourth Proportional to 478,305,767.01, 660,075,948.05 and 280,048,712.61

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Solution

The fourth proportional to 478,305,767.01, 660,075,948.05 and 280,048,712.61 is: 386,475,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,305,767.01 : 660,075,948.05 = 280,048,712.61 : x
  2. Step 2: Convert to fraction form
    478,305,767.01/660,075,948.05 = 280,048,712.61/x
  3. Step 3: Cross multiply
    478,305,767.01x = 660,075,948.05 × 280,048,712.61
  4. Step 4: Simplify right side
    478,305,767.01x = 184,853,419,474,827,488
  5. Step 5: Solve for x
    x = 184,853,419,474,827,488/478,305,767.01
  6. Step 6: Final answer
    x = 386,475,414.32

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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.