Home / 401,982,013,500.20-602,973,020,250.30-399,192,585,979.40

Finding the Fourth Proportional to 401,982,013,500.20, 602,973,020,250.30 and 399,192,585,979.40

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Solution

The fourth proportional to 401,982,013,500.20, 602,973,020,250.30 and 399,192,585,979.40 is: 598,788,878,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,982,013,500.20 : 602,973,020,250.30 = 399,192,585,979.40 : x
  2. Step 2: Convert to fraction form
    401,982,013,500.20/602,973,020,250.30 = 399,192,585,979.40/x
  3. Step 3: Cross multiply
    401,982,013,500.20x = 602,973,020,250.30 × 399,192,585,979.40
  4. Step 4: Simplify right side
    401,982,013,500.20x = 240,702,359,229,526,397,943,808
  5. Step 5: Solve for x
    x = 240,702,359,229,526,397,943,808/401,982,013,500.20
  6. Step 6: Final answer
    x = 598,788,878,969.10

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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.