Home / 86,937,699.20-130,406,548.80-65,254,906.40

Finding the Fourth Proportional to 86,937,699.20, 130,406,548.80 and 65,254,906.40

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Solution

The fourth proportional to 86,937,699.20, 130,406,548.80 and 65,254,906.40 is: 97,882,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,937,699.20 : 130,406,548.80 = 65,254,906.40 : x
  2. Step 2: Convert to fraction form
    86,937,699.20/130,406,548.80 = 65,254,906.40/x
  3. Step 3: Cross multiply
    86,937,699.20x = 130,406,548.80 × 65,254,906.40
  4. Step 4: Simplify right side
    86,937,699.20x = 8,509,667,135,891,032
  5. Step 5: Solve for x
    x = 8,509,667,135,891,032/86,937,699.20
  6. Step 6: Final answer
    x = 97,882,359.60

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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.