Home / 278,840,860.40-418,261,290.60-97,088,038.40

Finding the Fourth Proportional to 278,840,860.40, 418,261,290.60 and 97,088,038.40

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Solution

The fourth proportional to 278,840,860.40, 418,261,290.60 and 97,088,038.40 is: 145,632,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840,860.40 : 418,261,290.60 = 97,088,038.40 : x
  2. Step 2: Convert to fraction form
    278,840,860.40/418,261,290.60 = 97,088,038.40/x
  3. Step 3: Cross multiply
    278,840,860.40x = 418,261,290.60 × 97,088,038.40
  4. Step 4: Simplify right side
    278,840,860.40x = 40,608,168,243,006,360
  5. Step 5: Solve for x
    x = 40,608,168,243,006,360/278,840,860.40
  6. Step 6: Final answer
    x = 145,632,057.60

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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.