Home / 82,960,653.40-124,440,980.10-39,807,644.20

Finding the Fourth Proportional to 82,960,653.40, 124,440,980.10 and 39,807,644.20

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Solution

The fourth proportional to 82,960,653.40, 124,440,980.10 and 39,807,644.20 is: 59,711,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,960,653.40 : 124,440,980.10 = 39,807,644.20 : x
  2. Step 2: Convert to fraction form
    82,960,653.40/124,440,980.10 = 39,807,644.20/x
  3. Step 3: Cross multiply
    82,960,653.40x = 124,440,980.10 × 39,807,644.20
  4. Step 4: Simplify right side
    82,960,653.40x = 4,953,702,259,720,081
  5. Step 5: Solve for x
    x = 4,953,702,259,720,081/82,960,653.40
  6. Step 6: Final answer
    x = 59,711,466.30

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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.