Home / 99,661,930.40-149,209,460.40-76,798,157.60

Finding the Fourth Proportional to 99,661,930.40, 149,209,460.40 and 76,798,157.60

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Solution

The fourth proportional to 99,661,930.40, 149,209,460.40 and 76,798,157.60 is: 114,978,825.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,661,930.40 : 149,209,460.40 = 76,798,157.60 : x
  2. Step 2: Convert to fraction form
    99,661,930.40/149,209,460.40 = 76,798,157.60/x
  3. Step 3: Cross multiply
    99,661,930.40x = 149,209,460.40 × 76,798,157.60
  4. Step 4: Simplify right side
    99,661,930.40x = 11,459,011,655,210,158
  5. Step 5: Solve for x
    x = 11,459,011,655,210,158/99,661,930.40
  6. Step 6: Final answer
    x = 114,978,825.01

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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.