Home / 249,986,265.80-374,680,800.30-128,755,315.40

Finding the Fourth Proportional to 249,986,265.80, 374,680,800.30 and 128,755,315.40

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Solution

The fourth proportional to 249,986,265.80, 374,680,800.30 and 128,755,315.40 is: 192,979,180.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,986,265.80 : 374,680,800.30 = 128,755,315.40 : x
  2. Step 2: Convert to fraction form
    249,986,265.80/374,680,800.30 = 128,755,315.40/x
  3. Step 3: Cross multiply
    249,986,265.80x = 374,680,800.30 × 128,755,315.40
  4. Step 4: Simplify right side
    249,986,265.80x = 48,242,144,616,950,920
  5. Step 5: Solve for x
    x = 48,242,144,616,950,920/249,986,265.80
  6. Step 6: Final answer
    x = 192,979,180.13

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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.