Home / 39,013,162,148.34-53,838,121,936.05-21,191,832,970.74

Finding the Fourth Proportional to 39,013,162,148.34, 53,838,121,936.05 and 21,191,832,970.74

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Solution

The fourth proportional to 39,013,162,148.34, 53,838,121,936.05 and 21,191,832,970.74 is: 29,244,706,778.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,013,162,148.34 : 53,838,121,936.05 = 21,191,832,970.74 : x
  2. Step 2: Convert to fraction form
    39,013,162,148.34/53,838,121,936.05 = 21,191,832,970.74/x
  3. Step 3: Cross multiply
    39,013,162,148.34x = 53,838,121,936.05 × 21,191,832,970.74
  4. Step 4: Simplify right side
    39,013,162,148.34x = 1,140,928,487,527,105,036,288
  5. Step 5: Solve for x
    x = 1,140,928,487,527,105,036,288/39,013,162,148.34
  6. Step 6: Final answer
    x = 29,244,706,778.42

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1.5x scale

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.