Home / 278,131,837,356.10-417,197,756,034.15-68,752,586,412.10

Finding the Fourth Proportional to 278,131,837,356.10, 417,197,756,034.15 and 68,752,586,412.10

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Solution

The fourth proportional to 278,131,837,356.10, 417,197,756,034.15 and 68,752,586,412.10 is: 103,128,879,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,131,837,356.10 : 417,197,756,034.15 = 68,752,586,412.10 : x
  2. Step 2: Convert to fraction form
    278,131,837,356.10/417,197,756,034.15 = 68,752,586,412.10/x
  3. Step 3: Cross multiply
    278,131,837,356.10x = 417,197,756,034.15 × 68,752,586,412.10
  4. Step 4: Simplify right side
    278,131,837,356.10x = 28,683,424,772,672,114,917,376
  5. Step 5: Solve for x
    x = 28,683,424,772,672,114,917,376/278,131,837,356.10
  6. Step 6: Final answer
    x = 103,128,879,618.15

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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.