Home / 1,212,302,140.30-1,818,453,210.45-921,736,773.55

Finding the Fourth Proportional to 1,212,302,140.30, 1,818,453,210.45 and 921,736,773.55

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Solution

The fourth proportional to 1,212,302,140.30, 1,818,453,210.45 and 921,736,773.55 is: 1,382,605,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,302,140.30 : 1,818,453,210.45 = 921,736,773.55 : x
  2. Step 2: Convert to fraction form
    1,212,302,140.30/1,818,453,210.45 = 921,736,773.55/x
  3. Step 3: Cross multiply
    1,212,302,140.30x = 1,818,453,210.45 × 921,736,773.55
  4. Step 4: Simplify right side
    1,212,302,140.30x = 1,676,135,195,051,822,080
  5. Step 5: Solve for x
    x = 1,676,135,195,051,822,080/1,212,302,140.30
  6. Step 6: Final answer
    x = 1,382,605,160.33

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Double scale
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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.