Home / 287,280,090.60-430,920,135.90-282,745,127.40

Finding the Fourth Proportional to 287,280,090.60, 430,920,135.90 and 282,745,127.40

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Solution

The fourth proportional to 287,280,090.60, 430,920,135.90 and 282,745,127.40 is: 424,117,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,280,090.60 : 430,920,135.90 = 282,745,127.40 : x
  2. Step 2: Convert to fraction form
    287,280,090.60/430,920,135.90 = 282,745,127.40/x
  3. Step 3: Cross multiply
    287,280,090.60x = 430,920,135.90 × 282,745,127.40
  4. Step 4: Simplify right side
    287,280,090.60x = 121,840,568,724,270,800
  5. Step 5: Solve for x
    x = 121,840,568,724,270,800/287,280,090.60
  6. Step 6: Final answer
    x = 424,117,691.10

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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.