Home / 218,927,146.80-328,390,720.20-73,312,312.80

Finding the Fourth Proportional to 218,927,146.80, 328,390,720.20 and 73,312,312.80

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Solution

The fourth proportional to 218,927,146.80, 328,390,720.20 and 73,312,312.80 is: 109,968,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,927,146.80 : 328,390,720.20 = 73,312,312.80 : x
  2. Step 2: Convert to fraction form
    218,927,146.80/328,390,720.20 = 73,312,312.80/x
  3. Step 3: Cross multiply
    218,927,146.80x = 328,390,720.20 × 73,312,312.80
  4. Step 4: Simplify right side
    218,927,146.80x = 24,075,083,199,919,676
  5. Step 5: Solve for x
    x = 24,075,083,199,919,676/218,927,146.80
  6. Step 6: Final answer
    x = 109,968,469.20

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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.