Home / 402,840,023.40-604,260,035.10-211,338,916.20

Finding the Fourth Proportional to 402,840,023.40, 604,260,035.10 and 211,338,916.20

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Solution

The fourth proportional to 402,840,023.40, 604,260,035.10 and 211,338,916.20 is: 317,008,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,840,023.40 : 604,260,035.10 = 211,338,916.20 : x
  2. Step 2: Convert to fraction form
    402,840,023.40/604,260,035.10 = 211,338,916.20/x
  3. Step 3: Cross multiply
    402,840,023.40x = 604,260,035.10 × 211,338,916.20
  4. Step 4: Simplify right side
    402,840,023.40x = 127,703,660,921,007,952
  5. Step 5: Solve for x
    x = 127,703,660,921,007,952/402,840,023.40
  6. Step 6: Final answer
    x = 317,008,374.30

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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.