Home / 104,976,172.40-157,464,258.60-66,428,985.20

Finding the Fourth Proportional to 104,976,172.40, 157,464,258.60 and 66,428,985.20

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Solution

The fourth proportional to 104,976,172.40, 157,464,258.60 and 66,428,985.20 is: 99,643,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976,172.40 : 157,464,258.60 = 66,428,985.20 : x
  2. Step 2: Convert to fraction form
    104,976,172.40/157,464,258.60 = 66,428,985.20/x
  3. Step 3: Cross multiply
    104,976,172.40x = 157,464,258.60 × 66,428,985.20
  4. Step 4: Simplify right side
    104,976,172.40x = 10,460,190,904,068,372
  5. Step 5: Solve for x
    x = 10,460,190,904,068,372/104,976,172.40
  6. Step 6: Final answer
    x = 99,643,477.80

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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.