Home / 477,108,581.40-715,662,872.10-386,409,317.40

Finding the Fourth Proportional to 477,108,581.40, 715,662,872.10 and 386,409,317.40

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Solution

The fourth proportional to 477,108,581.40, 715,662,872.10 and 386,409,317.40 is: 579,613,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,108,581.40 : 715,662,872.10 = 386,409,317.40 : x
  2. Step 2: Convert to fraction form
    477,108,581.40/715,662,872.10 = 386,409,317.40/x
  3. Step 3: Cross multiply
    477,108,581.40x = 715,662,872.10 × 386,409,317.40
  4. Step 4: Simplify right side
    477,108,581.40x = 276,538,801,896,684,512
  5. Step 5: Solve for x
    x = 276,538,801,896,684,512/477,108,581.40
  6. Step 6: Final answer
    x = 579,613,976.10

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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.