Home / 713,074,085.28-983,807,012.52-430,711,020.72

Finding the Fourth Proportional to 713,074,085.28, 983,807,012.52 and 430,711,020.72

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Solution

The fourth proportional to 713,074,085.28, 983,807,012.52 and 430,711,020.72 is: 594,239,127.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,074,085.28 : 983,807,012.52 = 430,711,020.72 : x
  2. Step 2: Convert to fraction form
    713,074,085.28/983,807,012.52 = 430,711,020.72/x
  3. Step 3: Cross multiply
    713,074,085.28x = 983,807,012.52 × 430,711,020.72
  4. Step 4: Simplify right side
    713,074,085.28x = 423,736,522,553,983,040
  5. Step 5: Solve for x
    x = 423,736,522,553,983,040/713,074,085.28
  6. Step 6: Final answer
    x = 594,239,127.88

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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.