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Finding the Fourth Proportional to 276,329,641.60, 414,494,462.40 and 84,828,534.40

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Solution

The fourth proportional to 276,329,641.60, 414,494,462.40 and 84,828,534.40 is: 127,242,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,329,641.60 : 414,494,462.40 = 84,828,534.40 : x
  2. Step 2: Convert to fraction form
    276,329,641.60/414,494,462.40 = 84,828,534.40/x
  3. Step 3: Cross multiply
    276,329,641.60x = 414,494,462.40 × 84,828,534.40
  4. Step 4: Simplify right side
    276,329,641.60x = 35,160,957,762,307,908
  5. Step 5: Solve for x
    x = 35,160,957,762,307,908/276,329,641.60
  6. Step 6: Final answer
    x = 127,242,801.60

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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.