Home / 806,615,092.80-1,210,071,938.40-261,374,414.40

Finding the Fourth Proportional to 806,615,092.80, 1,210,071,938.40 and 261,374,414.40

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Solution

The fourth proportional to 806,615,092.80, 1,210,071,938.40 and 261,374,414.40 is: 392,110,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,615,092.80 : 1,210,071,938.40 = 261,374,414.40 : x
  2. Step 2: Convert to fraction form
    806,615,092.80/1,210,071,938.40 = 261,374,414.40/x
  3. Step 3: Cross multiply
    806,615,092.80x = 1,210,071,938.40 × 261,374,414.40
  4. Step 4: Simplify right side
    806,615,092.80x = 316,281,844,281,172,928
  5. Step 5: Solve for x
    x = 316,281,844,281,172,928/806,615,092.80
  6. Step 6: Final answer
    x = 392,110,000.30

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1.5x scale

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.