Home / 104,968,802.40-157,453,203.60-66,657,811.20

Finding the Fourth Proportional to 104,968,802.40, 157,453,203.60 and 66,657,811.20

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Solution

The fourth proportional to 104,968,802.40, 157,453,203.60 and 66,657,811.20 is: 99,986,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,968,802.40 : 157,453,203.60 = 66,657,811.20 : x
  2. Step 2: Convert to fraction form
    104,968,802.40/157,453,203.60 = 66,657,811.20/x
  3. Step 3: Cross multiply
    104,968,802.40x = 157,453,203.60 × 66,657,811.20
  4. Step 4: Simplify right side
    104,968,802.40x = 10,495,485,918,403,960
  5. Step 5: Solve for x
    x = 10,495,485,918,403,960/104,968,802.40
  6. Step 6: Final answer
    x = 99,986,716.80

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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.