Home / 1,113,357,455.28-1,536,343,687.20-643,489,209.52

Finding the Fourth Proportional to 1,113,357,455.28, 1,536,343,687.20 and 643,489,209.52

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Solution

The fourth proportional to 1,113,357,455.28, 1,536,343,687.20 and 643,489,209.52 is: 887,963,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,357,455.28 : 1,536,343,687.20 = 643,489,209.52 : x
  2. Step 2: Convert to fraction form
    1,113,357,455.28/1,536,343,687.20 = 643,489,209.52/x
  3. Step 3: Cross multiply
    1,113,357,455.28x = 1,536,343,687.20 × 643,489,209.52
  4. Step 4: Simplify right side
    1,113,357,455.28x = 988,620,584,827,370,112
  5. Step 5: Solve for x
    x = 988,620,584,827,370,112/1,113,357,455.28
  6. Step 6: Final answer
    x = 887,963,322.24

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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.