Home / 220,963,710.12-304,948,074.15-121,863,840

Finding the Fourth Proportional to 220,963,710.12, 304,948,074.15 and 121,863,840

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Solution

The fourth proportional to 220,963,710.12, 304,948,074.15 and 121,863,840 is: 168,182,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,963,710.12 : 304,948,074.15 = 121,863,840 : x
  2. Step 2: Convert to fraction form
    220,963,710.12/304,948,074.15 = 121,863,840/x
  3. Step 3: Cross multiply
    220,963,710.12x = 304,948,074.15 × 121,863,840
  4. Step 4: Simplify right side
    220,963,710.12x = 37,162,143,316,523,736
  5. Step 5: Solve for x
    x = 37,162,143,316,523,736/220,963,710.12
  6. Step 6: Final answer
    x = 168,182,111.43

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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.