Home / 443,070,051.40-664,605,077.10-213,487,539.40

Finding the Fourth Proportional to 443,070,051.40, 664,605,077.10 and 213,487,539.40

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Solution

The fourth proportional to 443,070,051.40, 664,605,077.10 and 213,487,539.40 is: 320,231,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,070,051.40 : 664,605,077.10 = 213,487,539.40 : x
  2. Step 2: Convert to fraction form
    443,070,051.40/664,605,077.10 = 213,487,539.40/x
  3. Step 3: Cross multiply
    443,070,051.40x = 664,605,077.10 × 213,487,539.40
  4. Step 4: Simplify right side
    443,070,051.40x = 141,884,902,582,826,304
  5. Step 5: Solve for x
    x = 141,884,902,582,826,304/443,070,051.40
  6. Step 6: Final answer
    x = 320,231,309.10

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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.