Home / 1,312,072,502.40-1,970,376,235.20-699,852,470.40

Finding the Fourth Proportional to 1,312,072,502.40, 1,970,376,235.20 and 699,852,470.40

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Solution

The fourth proportional to 1,312,072,502.40, 1,970,376,235.20 and 699,852,470.40 is: 1,050,988,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,072,502.40 : 1,970,376,235.20 = 699,852,470.40 : x
  2. Step 2: Convert to fraction form
    1,312,072,502.40/1,970,376,235.20 = 699,852,470.40/x
  3. Step 3: Cross multiply
    1,312,072,502.40x = 1,970,376,235.20 × 699,852,470.40
  4. Step 4: Simplify right side
    1,312,072,502.40x = 1,378,972,675,822,171,392
  5. Step 5: Solve for x
    x = 1,378,972,675,822,171,392/1,312,072,502.40
  6. Step 6: Final answer
    x = 1,050,988,168.18

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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.