Home / 1,049,761,621.70-1,574,642,432.55-359,439,445.70

Finding the Fourth Proportional to 1,049,761,621.70, 1,574,642,432.55 and 359,439,445.70

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Solution

The fourth proportional to 1,049,761,621.70, 1,574,642,432.55 and 359,439,445.70 is: 539,159,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,761,621.70 : 1,574,642,432.55 = 359,439,445.70 : x
  2. Step 2: Convert to fraction form
    1,049,761,621.70/1,574,642,432.55 = 359,439,445.70/x
  3. Step 3: Cross multiply
    1,049,761,621.70x = 1,574,642,432.55 × 359,439,445.70
  4. Step 4: Simplify right side
    1,049,761,621.70x = 565,988,603,131,471,616
  5. Step 5: Solve for x
    x = 565,988,603,131,471,616/1,049,761,621.70
  6. Step 6: Final answer
    x = 539,159,168.55

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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.