Home / 708,608,539.20-1,062,912,808.80-645,119,054.40

Finding the Fourth Proportional to 708,608,539.20, 1,062,912,808.80 and 645,119,054.40

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Solution

The fourth proportional to 708,608,539.20, 1,062,912,808.80 and 645,119,054.40 is: 967,678,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,608,539.20 : 1,062,912,808.80 = 645,119,054.40 : x
  2. Step 2: Convert to fraction form
    708,608,539.20/1,062,912,808.80 = 645,119,054.40/x
  3. Step 3: Cross multiply
    708,608,539.20x = 1,062,912,808.80 × 645,119,054.40
  4. Step 4: Simplify right side
    708,608,539.20x = 685,705,306,122,704,000
  5. Step 5: Solve for x
    x = 685,705,306,122,704,000/708,608,539.20
  6. Step 6: Final answer
    x = 967,678,581.60

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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.