Home / 440,692,685.10-660,283,200.45-210,165,389.10

Finding the Fourth Proportional to 440,692,685.10, 660,283,200.45 and 210,165,389.10

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Solution

The fourth proportional to 440,692,685.10, 660,283,200.45 and 210,165,389.10 is: 314,887,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,692,685.10 : 660,283,200.45 = 210,165,389.10 : x
  2. Step 2: Convert to fraction form
    440,692,685.10/660,283,200.45 = 210,165,389.10/x
  3. Step 3: Cross multiply
    440,692,685.10x = 660,283,200.45 × 210,165,389.10
  4. Step 4: Simplify right side
    440,692,685.10x = 138,768,675,738,767,552
  5. Step 5: Solve for x
    x = 138,768,675,738,767,552/440,692,685.10
  6. Step 6: Final answer
    x = 314,887,631.29

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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.