Home / 66,108,985.20-99,163,477.80-55,527,404.40

Finding the Fourth Proportional to 66,108,985.20, 99,163,477.80 and 55,527,404.40

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Solution

The fourth proportional to 66,108,985.20, 99,163,477.80 and 55,527,404.40 is: 83,291,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,108,985.20 : 99,163,477.80 = 55,527,404.40 : x
  2. Step 2: Convert to fraction form
    66,108,985.20/99,163,477.80 = 55,527,404.40/x
  3. Step 3: Cross multiply
    66,108,985.20x = 99,163,477.80 × 55,527,404.40
  4. Step 4: Simplify right side
    66,108,985.20x = 5,506,290,533,511,022
  5. Step 5: Solve for x
    x = 5,506,290,533,511,022/66,108,985.20
  6. Step 6: Final answer
    x = 83,291,106.60

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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.