Home / 402,840,030.90-604,260,046.35-211,338,923.70

Finding the Fourth Proportional to 402,840,030.90, 604,260,046.35 and 211,338,923.70

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Solution

The fourth proportional to 402,840,030.90, 604,260,046.35 and 211,338,923.70 is: 317,008,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,840,030.90 : 604,260,046.35 = 211,338,923.70 : x
  2. Step 2: Convert to fraction form
    402,840,030.90/604,260,046.35 = 211,338,923.70/x
  3. Step 3: Cross multiply
    402,840,030.90x = 604,260,046.35 × 211,338,923.70
  4. Step 4: Simplify right side
    402,840,030.90x = 127,703,667,830,521,104
  5. Step 5: Solve for x
    x = 127,703,667,830,521,104/402,840,030.90
  6. Step 6: Final answer
    x = 317,008,385.55

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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.