Home / 103,138,685.46-154,725,653.80-42,521,274.90

Finding the Fourth Proportional to 103,138,685.46, 154,725,653.80 and 42,521,274.90

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Solution

The fourth proportional to 103,138,685.46, 154,725,653.80 and 42,521,274.90 is: 63,789,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,138,685.46 : 154,725,653.80 = 42,521,274.90 : x
  2. Step 2: Convert to fraction form
    103,138,685.46/154,725,653.80 = 42,521,274.90/x
  3. Step 3: Cross multiply
    103,138,685.46x = 154,725,653.80 × 42,521,274.90
  4. Step 4: Simplify right side
    103,138,685.46x = 6,579,132,059,312,030
  5. Step 5: Solve for x
    x = 6,579,132,059,312,030/103,138,685.46
  6. Step 6: Final answer
    x = 63,789,178.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.