Home / 77,969,461.60-116,828,221.20-49,164,047.20

Finding the Fourth Proportional to 77,969,461.60, 116,828,221.20 and 49,164,047.20

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Solution

The fourth proportional to 77,969,461.60, 116,828,221.20 and 49,164,047.20 is: 73,666,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,969,461.60 : 116,828,221.20 = 49,164,047.20 : x
  2. Step 2: Convert to fraction form
    77,969,461.60/116,828,221.20 = 49,164,047.20/x
  3. Step 3: Cross multiply
    77,969,461.60x = 116,828,221.20 × 49,164,047.20
  4. Step 4: Simplify right side
    77,969,461.60x = 5,743,748,181,368,841
  5. Step 5: Solve for x
    x = 5,743,748,181,368,841/77,969,461.60
  6. Step 6: Final answer
    x = 73,666,639.01

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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.