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Finding the Fourth Proportional to 66,051,175.80, 99,076,763.70 and 20,607,065.40

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Solution

The fourth proportional to 66,051,175.80, 99,076,763.70 and 20,607,065.40 is: 30,910,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,051,175.80 : 99,076,763.70 = 20,607,065.40 : x
  2. Step 2: Convert to fraction form
    66,051,175.80/99,076,763.70 = 20,607,065.40/x
  3. Step 3: Cross multiply
    66,051,175.80x = 99,076,763.70 × 20,607,065.40
  4. Step 4: Simplify right side
    66,051,175.80x = 2,041,681,349,186,246
  5. Step 5: Solve for x
    x = 2,041,681,349,186,246/66,051,175.80
  6. Step 6: Final answer
    x = 30,910,598.10

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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.