Home / 206,690,837.40-310,036,256.10-70,376,220.90

Finding the Fourth Proportional to 206,690,837.40, 310,036,256.10 and 70,376,220.90

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Solution

The fourth proportional to 206,690,837.40, 310,036,256.10 and 70,376,220.90 is: 105,564,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,690,837.40 : 310,036,256.10 = 70,376,220.90 : x
  2. Step 2: Convert to fraction form
    206,690,837.40/310,036,256.10 = 70,376,220.90/x
  3. Step 3: Cross multiply
    206,690,837.40x = 310,036,256.10 × 70,376,220.90
  4. Step 4: Simplify right side
    206,690,837.40x = 21,819,180,046,302,576
  5. Step 5: Solve for x
    x = 21,819,180,046,302,576/206,690,837.40
  6. Step 6: Final answer
    x = 105,564,331.35

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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.