Home / 1,344,990,041.16-1,856,132,340.72-780,432,393.72

Finding the Fourth Proportional to 1,344,990,041.16, 1,856,132,340.72 and 780,432,393.72

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Solution

The fourth proportional to 1,344,990,041.16, 1,856,132,340.72 and 780,432,393.72 is: 1,077,023,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,990,041.16 : 1,856,132,340.72 = 780,432,393.72 : x
  2. Step 2: Convert to fraction form
    1,344,990,041.16/1,856,132,340.72 = 780,432,393.72/x
  3. Step 3: Cross multiply
    1,344,990,041.16x = 1,856,132,340.72 × 780,432,393.72
  4. Step 4: Simplify right side
    1,344,990,041.16x = 1,448,585,805,729,216,256
  5. Step 5: Solve for x
    x = 1,448,585,805,729,216,256/1,344,990,041.16
  6. Step 6: Final answer
    x = 1,077,023,443.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.