Home / 1,275,264,378.30-1,912,896,567.45-355,282,707.90

Finding the Fourth Proportional to 1,275,264,378.30, 1,912,896,567.45 and 355,282,707.90

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Solution

The fourth proportional to 1,275,264,378.30, 1,912,896,567.45 and 355,282,707.90 is: 532,924,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,264,378.30 : 1,912,896,567.45 = 355,282,707.90 : x
  2. Step 2: Convert to fraction form
    1,275,264,378.30/1,912,896,567.45 = 355,282,707.90/x
  3. Step 3: Cross multiply
    1,275,264,378.30x = 1,912,896,567.45 × 355,282,707.90
  4. Step 4: Simplify right side
    1,275,264,378.30x = 679,619,072,416,251,008
  5. Step 5: Solve for x
    x = 679,619,072,416,251,008/1,275,264,378.30
  6. Step 6: Final answer
    x = 532,924,061.85

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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.