Home / 1,309,627,516.80-1,807,328,748.64-714,943,710.88

Finding the Fourth Proportional to 1,309,627,516.80, 1,807,328,748.64 and 714,943,710.88

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Solution

The fourth proportional to 1,309,627,516.80, 1,807,328,748.64 and 714,943,710.88 is: 986,645,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,627,516.80 : 1,807,328,748.64 = 714,943,710.88 : x
  2. Step 2: Convert to fraction form
    1,309,627,516.80/1,807,328,748.64 = 714,943,710.88/x
  3. Step 3: Cross multiply
    1,309,627,516.80x = 1,807,328,748.64 × 714,943,710.88
  4. Step 4: Simplify right side
    1,309,627,516.80x = 1,292,138,322,332,788,480
  5. Step 5: Solve for x
    x = 1,292,138,322,332,788,480/1,309,627,516.80
  6. Step 6: Final answer
    x = 986,645,672.73

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Double scale
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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.