Home / 278,909,534.10-418,380,047.55-84,827,280.90

Finding the Fourth Proportional to 278,909,534.10, 418,380,047.55 and 84,827,280.90

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Solution

The fourth proportional to 278,909,534.10, 418,380,047.55 and 84,827,280.90 is: 127,245,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,909,534.10 : 418,380,047.55 = 84,827,280.90 : x
  2. Step 2: Convert to fraction form
    278,909,534.10/418,380,047.55 = 84,827,280.90/x
  3. Step 3: Cross multiply
    278,909,534.10x = 418,380,047.55 × 84,827,280.90
  4. Step 4: Simplify right side
    278,909,534.10x = 35,490,041,816,479,212
  5. Step 5: Solve for x
    x = 35,490,041,816,479,212/278,909,534.10
  6. Step 6: Final answer
    x = 127,245,710.45

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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.