Home / 427,717,382.49-641,648,504.07-147,522,214.98

Finding the Fourth Proportional to 427,717,382.49, 641,648,504.07 and 147,522,214.98

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Solution

The fourth proportional to 427,717,382.49, 641,648,504.07 and 147,522,214.98 is: 221,308,304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,717,382.49 : 641,648,504.07 = 147,522,214.98 : x
  2. Step 2: Convert to fraction form
    427,717,382.49/641,648,504.07 = 147,522,214.98/x
  3. Step 3: Cross multiply
    427,717,382.49x = 641,648,504.07 × 147,522,214.98
  4. Step 4: Simplify right side
    427,717,382.49x = 94,657,408,559,009,952
  5. Step 5: Solve for x
    x = 94,657,408,559,009,952/427,717,382.49
  6. Step 6: Final answer
    x = 221,308,304.11

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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.