Home / 249,686,503.80-374,436,854.10-85,878,281.40

Finding the Fourth Proportional to 249,686,503.80, 374,436,854.10 and 85,878,281.40

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Solution

The fourth proportional to 249,686,503.80, 374,436,854.10 and 85,878,281.40 is: 128,785,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,686,503.80 : 374,436,854.10 = 85,878,281.40 : x
  2. Step 2: Convert to fraction form
    249,686,503.80/374,436,854.10 = 85,878,281.40/x
  3. Step 3: Cross multiply
    249,686,503.80x = 374,436,854.10 × 85,878,281.40
  4. Step 4: Simplify right side
    249,686,503.80x = 32,155,993,522,930,548
  5. Step 5: Solve for x
    x = 32,155,993,522,930,548/249,686,503.80
  6. Step 6: Final answer
    x = 128,785,469.11

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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.