Home / 7,129,275.35-9,838,402.63-3,866,089.23

Finding the Fourth Proportional to 7,129,275.35, 9,838,402.63 and 3,866,089.23

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Solution

The fourth proportional to 7,129,275.35, 9,838,402.63 and 3,866,089.23 is: 5,335,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,275.35 : 9,838,402.63 = 3,866,089.23 : x
  2. Step 2: Convert to fraction form
    7,129,275.35/9,838,402.63 = 3,866,089.23/x
  3. Step 3: Cross multiply
    7,129,275.35x = 9,838,402.63 × 3,866,089.23
  4. Step 4: Simplify right side
    7,129,275.35x = 38,036,142,438,581.45
  5. Step 5: Solve for x
    x = 38,036,142,438,581.45/7,129,275.35
  6. Step 6: Final answer
    x = 5,335,204.58

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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.