Home / 1,636,253,281.32-2,257,964,290.80-921,772,191.12

Finding the Fourth Proportional to 1,636,253,281.32, 2,257,964,290.80 and 921,772,191.12

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Solution

The fourth proportional to 1,636,253,281.32, 2,257,964,290.80 and 921,772,191.12 is: 1,272,008,872.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636,253,281.32 : 2,257,964,290.80 = 921,772,191.12 : x
  2. Step 2: Convert to fraction form
    1,636,253,281.32/2,257,964,290.80 = 921,772,191.12/x
  3. Step 3: Cross multiply
    1,636,253,281.32x = 2,257,964,290.80 × 921,772,191.12
  4. Step 4: Simplify right side
    1,636,253,281.32x = 2,081,328,691,801,433,088
  5. Step 5: Solve for x
    x = 2,081,328,691,801,433,088/1,636,253,281.32
  6. Step 6: Final answer
    x = 1,272,008,872.69

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.