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Finding the Fourth Proportional to 425,344,702.80, 638,017,054.20 and 166,473,886.80

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Solution

The fourth proportional to 425,344,702.80, 638,017,054.20 and 166,473,886.80 is: 249,710,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,344,702.80 : 638,017,054.20 = 166,473,886.80 : x
  2. Step 2: Convert to fraction form
    425,344,702.80/638,017,054.20 = 166,473,886.80/x
  3. Step 3: Cross multiply
    425,344,702.80x = 638,017,054.20 × 166,473,886.80
  4. Step 4: Simplify right side
    425,344,702.80x = 106,213,178,857,360,288
  5. Step 5: Solve for x
    x = 106,213,178,857,360,288/425,344,702.80
  6. Step 6: Final answer
    x = 249,710,830.20

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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.