Home / 86,018,834.80-129,028,252.20-38,243,090.80

Finding the Fourth Proportional to 86,018,834.80, 129,028,252.20 and 38,243,090.80

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Solution

The fourth proportional to 86,018,834.80, 129,028,252.20 and 38,243,090.80 is: 57,364,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,018,834.80 : 129,028,252.20 = 38,243,090.80 : x
  2. Step 2: Convert to fraction form
    86,018,834.80/129,028,252.20 = 38,243,090.80/x
  3. Step 3: Cross multiply
    86,018,834.80x = 129,028,252.20 × 38,243,090.80
  4. Step 4: Simplify right side
    86,018,834.80x = 4,934,439,164,649,899
  5. Step 5: Solve for x
    x = 4,934,439,164,649,899/86,018,834.80
  6. Step 6: Final answer
    x = 57,364,636.20

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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.