Home / 1,312,738,200.03-1,812,136,516.52-817,945,371.39

Finding the Fourth Proportional to 1,312,738,200.03, 1,812,136,516.52 and 817,945,371.39

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Solution

The fourth proportional to 1,312,738,200.03, 1,812,136,516.52 and 817,945,371.39 is: 1,129,112,168.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,738,200.03 : 1,812,136,516.52 = 817,945,371.39 : x
  2. Step 2: Convert to fraction form
    1,312,738,200.03/1,812,136,516.52 = 817,945,371.39/x
  3. Step 3: Cross multiply
    1,312,738,200.03x = 1,812,136,516.52 × 817,945,371.39
  4. Step 4: Simplify right side
    1,312,738,200.03x = 1,482,228,676,010,242,560
  5. Step 5: Solve for x
    x = 1,482,228,676,010,242,560/1,312,738,200.03
  6. Step 6: Final answer
    x = 1,129,112,168.73

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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.