Home / 390,259,355.50-585,423,442.27-110,142,765.36

Finding the Fourth Proportional to 390,259,355.50, 585,423,442.27 and 110,142,765.36

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Solution

The fourth proportional to 390,259,355.50, 585,423,442.27 and 110,142,765.36 is: 165,223,859.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,259,355.50 : 585,423,442.27 = 110,142,765.36 : x
  2. Step 2: Convert to fraction form
    390,259,355.50/585,423,442.27 = 110,142,765.36/x
  3. Step 3: Cross multiply
    390,259,355.50x = 585,423,442.27 × 110,142,765.36
  4. Step 4: Simplify right side
    390,259,355.50x = 64,480,156,834,710,288
  5. Step 5: Solve for x
    x = 64,480,156,834,710,288/390,259,355.50
  6. Step 6: Final answer
    x = 165,223,859.28

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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.