Home / 487,802,073.60-672,236,551.20-478,836,073.44

Finding the Fourth Proportional to 487,802,073.60, 672,236,551.20 and 478,836,073.44

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Solution

The fourth proportional to 487,802,073.60, 672,236,551.20 and 478,836,073.44 is: 659,880,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,802,073.60 : 672,236,551.20 = 478,836,073.44 : x
  2. Step 2: Convert to fraction form
    487,802,073.60/672,236,551.20 = 478,836,073.44/x
  3. Step 3: Cross multiply
    487,802,073.60x = 672,236,551.20 × 478,836,073.44
  4. Step 4: Simplify right side
    487,802,073.60x = 321,891,110,599,455,552
  5. Step 5: Solve for x
    x = 321,891,110,599,455,552/487,802,073.60
  6. Step 6: Final answer
    x = 659,880,570.46

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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.