Home / 99,645,629.80-149,492,064.30-51,130,971.40

Finding the Fourth Proportional to 99,645,629.80, 149,492,064.30 and 51,130,971.40

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Solution

The fourth proportional to 99,645,629.80, 149,492,064.30 and 51,130,971.40 is: 76,708,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645,629.80 : 149,492,064.30 = 51,130,971.40 : x
  2. Step 2: Convert to fraction form
    99,645,629.80/149,492,064.30 = 51,130,971.40/x
  3. Step 3: Cross multiply
    99,645,629.80x = 149,492,064.30 × 51,130,971.40
  4. Step 4: Simplify right side
    99,645,629.80x = 7,643,674,464,250,261
  5. Step 5: Solve for x
    x = 7,643,674,464,250,261/99,645,629.80
  6. Step 6: Final answer
    x = 76,708,576.98

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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.