Home / 278,840,435.40-418,260,653.10-97,087,613.40

Finding the Fourth Proportional to 278,840,435.40, 418,260,653.10 and 97,087,613.40

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Solution

The fourth proportional to 278,840,435.40, 418,260,653.10 and 97,087,613.40 is: 145,631,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840,435.40 : 418,260,653.10 = 97,087,613.40 : x
  2. Step 2: Convert to fraction form
    278,840,435.40/418,260,653.10 = 97,087,613.40/x
  3. Step 3: Cross multiply
    278,840,435.40x = 418,260,653.10 × 97,087,613.40
  4. Step 4: Simplify right side
    278,840,435.40x = 40,607,928,588,604,320
  5. Step 5: Solve for x
    x = 40,607,928,588,604,320/278,840,435.40
  6. Step 6: Final answer
    x = 145,631,420.10

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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.