Home / 839,814,031.40-1,259,721,047.10-472,482,012.20

Finding the Fourth Proportional to 839,814,031.40, 1,259,721,047.10 and 472,482,012.20

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Solution

The fourth proportional to 839,814,031.40, 1,259,721,047.10 and 472,482,012.20 is: 708,723,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,814,031.40 : 1,259,721,047.10 = 472,482,012.20 : x
  2. Step 2: Convert to fraction form
    839,814,031.40/1,259,721,047.10 = 472,482,012.20/x
  3. Step 3: Cross multiply
    839,814,031.40x = 1,259,721,047.10 × 472,482,012.20
  4. Step 4: Simplify right side
    839,814,031.40x = 595,195,535,144,498,944
  5. Step 5: Solve for x
    x = 595,195,535,144,498,944/839,814,031.40
  6. Step 6: Final answer
    x = 708,723,018.30

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1.5x scale

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.