Home / 139,386,518,178.40-209,079,765,736.71-38,657,384,445.75

Finding the Fourth Proportional to 139,386,518,178.40, 209,079,765,736.71 and 38,657,384,445.75

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Solution

The fourth proportional to 139,386,518,178.40, 209,079,765,736.71 and 38,657,384,445.75 is: 57,986,073,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,386,518,178.40 : 209,079,765,736.71 = 38,657,384,445.75 : x
  2. Step 2: Convert to fraction form
    139,386,518,178.40/209,079,765,736.71 = 38,657,384,445.75/x
  3. Step 3: Cross multiply
    139,386,518,178.40x = 209,079,765,736.71 × 38,657,384,445.75
  4. Step 4: Simplify right side
    139,386,518,178.40x = 8,082,476,883,911,346,487,296
  5. Step 5: Solve for x
    x = 8,082,476,883,911,346,487,296/139,386,518,178.40
  6. Step 6: Final answer
    x = 57,986,073,470.65

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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.