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Finding the Fourth Proportional to 66,312,101.40, 99,468,152.10 and 50,050,006.80

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Solution

The fourth proportional to 66,312,101.40, 99,468,152.10 and 50,050,006.80 is: 75,075,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,312,101.40 : 99,468,152.10 = 50,050,006.80 : x
  2. Step 2: Convert to fraction form
    66,312,101.40/99,468,152.10 = 50,050,006.80/x
  3. Step 3: Cross multiply
    66,312,101.40x = 99,468,152.10 × 50,050,006.80
  4. Step 4: Simplify right side
    66,312,101.40x = 4,978,381,688,988,434
  5. Step 5: Solve for x
    x = 4,978,381,688,988,434/66,312,101.40
  6. Step 6: Final answer
    x = 75,075,010.20

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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.