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Finding the Fourth Proportional to 249,319,115.80, 373,978,673.70 and 146,006,985.40

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Solution

The fourth proportional to 249,319,115.80, 373,978,673.70 and 146,006,985.40 is: 219,010,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,319,115.80 : 373,978,673.70 = 146,006,985.40 : x
  2. Step 2: Convert to fraction form
    249,319,115.80/373,978,673.70 = 146,006,985.40/x
  3. Step 3: Cross multiply
    249,319,115.80x = 373,978,673.70 × 146,006,985.40
  4. Step 4: Simplify right side
    249,319,115.80x = 54,603,498,750,827,264
  5. Step 5: Solve for x
    x = 54,603,498,750,827,264/249,319,115.80
  6. Step 6: Final answer
    x = 219,010,478.10

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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.