Home / 249,686,504.80-374,436,855.60-85,878,282.40

Finding the Fourth Proportional to 249,686,504.80, 374,436,855.60 and 85,878,282.40

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Solution

The fourth proportional to 249,686,504.80, 374,436,855.60 and 85,878,282.40 is: 128,785,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,686,504.80 : 374,436,855.60 = 85,878,282.40 : x
  2. Step 2: Convert to fraction form
    249,686,504.80/374,436,855.60 = 85,878,282.40/x
  3. Step 3: Cross multiply
    249,686,504.80x = 374,436,855.60 × 85,878,282.40
  4. Step 4: Simplify right side
    249,686,504.80x = 32,155,994,026,184,824
  5. Step 5: Solve for x
    x = 32,155,994,026,184,824/249,686,504.80
  6. Step 6: Final answer
    x = 128,785,470.61

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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.