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Finding the Fourth Proportional to 56,662,885.60, 84,994,328.40 and 18,328,274.80

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Solution

The fourth proportional to 56,662,885.60, 84,994,328.40 and 18,328,274.80 is: 27,492,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,662,885.60 : 84,994,328.40 = 18,328,274.80 : x
  2. Step 2: Convert to fraction form
    56,662,885.60/84,994,328.40 = 18,328,274.80/x
  3. Step 3: Cross multiply
    56,662,885.60x = 84,994,328.40 × 18,328,274.80
  4. Step 4: Simplify right side
    56,662,885.60x = 1,557,799,407,356,644.50
  5. Step 5: Solve for x
    x = 1,557,799,407,356,644.50/56,662,885.60
  6. Step 6: Final answer
    x = 27,492,412.20

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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.