Home / 287,280,072.60-430,920,108.90-282,745,109.40

Finding the Fourth Proportional to 287,280,072.60, 430,920,108.90 and 282,745,109.40

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Solution

The fourth proportional to 287,280,072.60, 430,920,108.90 and 282,745,109.40 is: 424,117,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,280,072.60 : 430,920,108.90 = 282,745,109.40 : x
  2. Step 2: Convert to fraction form
    287,280,072.60/430,920,108.90 = 282,745,109.40/x
  3. Step 3: Cross multiply
    287,280,072.60x = 430,920,108.90 × 282,745,109.40
  4. Step 4: Simplify right side
    287,280,072.60x = 121,840,553,333,590,400
  5. Step 5: Solve for x
    x = 121,840,553,333,590,400/287,280,072.60
  6. Step 6: Final answer
    x = 424,117,664.10

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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.