Home / 99,549,090.28-137,370,729.54-55,494,140.40

Finding the Fourth Proportional to 99,549,090.28, 137,370,729.54 and 55,494,140.40

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Solution

The fourth proportional to 99,549,090.28, 137,370,729.54 and 55,494,140.40 is: 76,578,003.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,549,090.28 : 137,370,729.54 = 55,494,140.40 : x
  2. Step 2: Convert to fraction form
    99,549,090.28/137,370,729.54 = 55,494,140.40/x
  3. Step 3: Cross multiply
    99,549,090.28x = 137,370,729.54 × 55,494,140.40
  4. Step 4: Simplify right side
    99,549,090.28x = 7,623,270,551,943,187
  5. Step 5: Solve for x
    x = 7,623,270,551,943,187/99,549,090.28
  6. Step 6: Final answer
    x = 76,578,003.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.