Home / 77,280,784.80-115,921,177.20-47,047,696.80

Finding the Fourth Proportional to 77,280,784.80, 115,921,177.20 and 47,047,696.80

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Solution

The fourth proportional to 77,280,784.80, 115,921,177.20 and 47,047,696.80 is: 70,571,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280,784.80 : 115,921,177.20 = 47,047,696.80 : x
  2. Step 2: Convert to fraction form
    77,280,784.80/115,921,177.20 = 47,047,696.80/x
  3. Step 3: Cross multiply
    77,280,784.80x = 115,921,177.20 × 47,047,696.80
  4. Step 4: Simplify right side
    77,280,784.80x = 5,453,824,397,604,673
  5. Step 5: Solve for x
    x = 5,453,824,397,604,673/77,280,784.80
  6. Step 6: Final answer
    x = 70,571,545.20

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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.