Home / 328,144,631.80-492,179,622.90-85,832,030.20

Finding the Fourth Proportional to 328,144,631.80, 492,179,622.90 and 85,832,030.20

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Solution

The fourth proportional to 328,144,631.80, 492,179,622.90 and 85,832,030.20 is: 128,738,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,144,631.80 : 492,179,622.90 = 85,832,030.20 : x
  2. Step 2: Convert to fraction form
    328,144,631.80/492,179,622.90 = 85,832,030.20/x
  3. Step 3: Cross multiply
    328,144,631.80x = 492,179,622.90 × 85,832,030.20
  4. Step 4: Simplify right side
    328,144,631.80x = 42,244,776,256,577,408
  5. Step 5: Solve for x
    x = 42,244,776,256,577,408/328,144,631.80
  6. Step 6: Final answer
    x = 128,738,282.34

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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.