Home / 86,157,037.80-129,235,556.70-61,970,567.40

Finding the Fourth Proportional to 86,157,037.80, 129,235,556.70 and 61,970,567.40

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Solution

The fourth proportional to 86,157,037.80, 129,235,556.70 and 61,970,567.40 is: 92,955,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,157,037.80 : 129,235,556.70 = 61,970,567.40 : x
  2. Step 2: Convert to fraction form
    86,157,037.80/129,235,556.70 = 61,970,567.40/x
  3. Step 3: Cross multiply
    86,157,037.80x = 129,235,556.70 × 61,970,567.40
  4. Step 4: Simplify right side
    86,157,037.80x = 8,008,800,776,953,872
  5. Step 5: Solve for x
    x = 8,008,800,776,953,872/86,157,037.80
  6. Step 6: Final answer
    x = 92,955,851.10

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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.