Home / 77,969,544.60-116,828,345.70-49,164,130.20

Finding the Fourth Proportional to 77,969,544.60, 116,828,345.70 and 49,164,130.20

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Solution

The fourth proportional to 77,969,544.60, 116,828,345.70 and 49,164,130.20 is: 73,666,763.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,969,544.60 : 116,828,345.70 = 49,164,130.20 : x
  2. Step 2: Convert to fraction form
    77,969,544.60/116,828,345.70 = 49,164,130.20/x
  3. Step 3: Cross multiply
    77,969,544.60x = 116,828,345.70 × 49,164,130.20
  4. Step 4: Simplify right side
    77,969,544.60x = 5,743,763,999,045,411
  5. Step 5: Solve for x
    x = 5,743,763,999,045,411/77,969,544.60
  6. Step 6: Final answer
    x = 73,666,763.46

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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.