Home / 66,308,846.70-99,476,722.05-20,860,070.70

Finding the Fourth Proportional to 66,308,846.70, 99,476,722.05 and 20,860,070.70

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Solution

The fourth proportional to 66,308,846.70, 99,476,722.05 and 20,860,070.70 is: 31,294,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308,846.70 : 99,476,722.05 = 20,860,070.70 : x
  2. Step 2: Convert to fraction form
    66,308,846.70/99,476,722.05 = 20,860,070.70/x
  3. Step 3: Cross multiply
    66,308,846.70x = 99,476,722.05 × 20,860,070.70
  4. Step 4: Simplify right side
    66,308,846.70x = 2,075,091,454,967,248.75
  5. Step 5: Solve for x
    x = 2,075,091,454,967,248.75/66,308,846.70
  6. Step 6: Final answer
    x = 31,294,337.91

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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.