Home / 56,712,659.60-85,068,989.40-18,378,048.80

Finding the Fourth Proportional to 56,712,659.60, 85,068,989.40 and 18,378,048.80

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Solution

The fourth proportional to 56,712,659.60, 85,068,989.40 and 18,378,048.80 is: 27,567,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,712,659.60 : 85,068,989.40 = 18,378,048.80 : x
  2. Step 2: Convert to fraction form
    56,712,659.60/85,068,989.40 = 18,378,048.80/x
  3. Step 3: Cross multiply
    56,712,659.60x = 85,068,989.40 × 18,378,048.80
  4. Step 4: Simplify right side
    56,712,659.60x = 1,563,402,038,559,883
  5. Step 5: Solve for x
    x = 1,563,402,038,559,883/56,712,659.60
  6. Step 6: Final answer
    x = 27,567,073.20

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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.