Home / 728,712,069.90-1,093,068,104.85-658,420,140.30

Finding the Fourth Proportional to 728,712,069.90, 1,093,068,104.85 and 658,420,140.30

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Solution

The fourth proportional to 728,712,069.90, 1,093,068,104.85 and 658,420,140.30 is: 987,630,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,712,069.90 : 1,093,068,104.85 = 658,420,140.30 : x
  2. Step 2: Convert to fraction form
    728,712,069.90/1,093,068,104.85 = 658,420,140.30/x
  3. Step 3: Cross multiply
    728,712,069.90x = 1,093,068,104.85 × 658,420,140.30
  4. Step 4: Simplify right side
    728,712,069.90x = 719,698,054,952,791,936
  5. Step 5: Solve for x
    x = 719,698,054,952,791,936/728,712,069.90
  6. Step 6: Final answer
    x = 987,630,210.45

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Double scale
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Similar ratio
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1.5x scale

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.