Home / 77,381,264.80-115,972,364.40-47,056,938.40

Finding the Fourth Proportional to 77,381,264.80, 115,972,364.40 and 47,056,938.40

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Solution

The fourth proportional to 77,381,264.80, 115,972,364.40 and 47,056,938.40 is: 70,524,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,381,264.80 : 115,972,364.40 = 47,056,938.40 : x
  2. Step 2: Convert to fraction form
    77,381,264.80/115,972,364.40 = 47,056,938.40/x
  3. Step 3: Cross multiply
    77,381,264.80x = 115,972,364.40 × 47,056,938.40
  4. Step 4: Simplify right side
    77,381,264.80x = 5,457,304,407,673,153
  5. Step 5: Solve for x
    x = 5,457,304,407,673,153/77,381,264.80
  6. Step 6: Final answer
    x = 70,524,879.91

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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.