Home / 1,225,195,095.64-1,690,769,222.94-668,278,125.40

Finding the Fourth Proportional to 1,225,195,095.64, 1,690,769,222.94 and 668,278,125.40

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Solution

The fourth proportional to 1,225,195,095.64, 1,690,769,222.94 and 668,278,125.40 is: 922,223,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,195,095.64 : 1,690,769,222.94 = 668,278,125.40 : x
  2. Step 2: Convert to fraction form
    1,225,195,095.64/1,690,769,222.94 = 668,278,125.40/x
  3. Step 3: Cross multiply
    1,225,195,095.64x = 1,690,769,222.94 × 668,278,125.40
  4. Step 4: Simplify right side
    1,225,195,095.64x = 1,129,904,086,790,357,888
  5. Step 5: Solve for x
    x = 1,129,904,086,790,357,888/1,225,195,095.64
  6. Step 6: Final answer
    x = 922,223,808.12

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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.