Home / 426,264,802.10-639,397,203.15-288,515,294.90

Finding the Fourth Proportional to 426,264,802.10, 639,397,203.15 and 288,515,294.90

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Solution

The fourth proportional to 426,264,802.10, 639,397,203.15 and 288,515,294.90 is: 432,772,942.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,264,802.10 : 639,397,203.15 = 288,515,294.90 : x
  2. Step 2: Convert to fraction form
    426,264,802.10/639,397,203.15 = 288,515,294.90/x
  3. Step 3: Cross multiply
    426,264,802.10x = 639,397,203.15 × 288,515,294.90
  4. Step 4: Simplify right side
    426,264,802.10x = 184,475,872,625,057,440
  5. Step 5: Solve for x
    x = 184,475,872,625,057,440/426,264,802.10
  6. Step 6: Final answer
    x = 432,772,942.35

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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.