Home / 991,680,212.70-1,487,520,319.05-931,214,036.70

Finding the Fourth Proportional to 991,680,212.70, 1,487,520,319.05 and 931,214,036.70

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Solution

The fourth proportional to 991,680,212.70, 1,487,520,319.05 and 931,214,036.70 is: 1,396,821,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,680,212.70 : 1,487,520,319.05 = 931,214,036.70 : x
  2. Step 2: Convert to fraction form
    991,680,212.70/1,487,520,319.05 = 931,214,036.70/x
  3. Step 3: Cross multiply
    991,680,212.70x = 1,487,520,319.05 × 931,214,036.70
  4. Step 4: Simplify right side
    991,680,212.70x = 1,385,199,800,975,822,336
  5. Step 5: Solve for x
    x = 1,385,199,800,975,822,336/991,680,212.70
  6. Step 6: Final answer
    x = 1,396,821,055.05

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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.