Home / 287,864,100.90-431,158,422.15-249,600,348.90

Finding the Fourth Proportional to 287,864,100.90, 431,158,422.15 and 249,600,348.90

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Solution

The fourth proportional to 287,864,100.90, 431,158,422.15 and 249,600,348.90 is: 373,847,563.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,864,100.90 : 431,158,422.15 = 249,600,348.90 : x
  2. Step 2: Convert to fraction form
    287,864,100.90/431,158,422.15 = 249,600,348.90/x
  3. Step 3: Cross multiply
    287,864,100.90x = 431,158,422.15 × 249,600,348.90
  4. Step 4: Simplify right side
    287,864,100.90x = 107,617,292,599,813,488
  5. Step 5: Solve for x
    x = 107,617,292,599,813,488/287,864,100.90
  6. Step 6: Final answer
    x = 373,847,563.01

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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.