Home / 185,509,666.80-278,370,788.40-70,576,693.20

Finding the Fourth Proportional to 185,509,666.80, 278,370,788.40 and 70,576,693.20

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Solution

The fourth proportional to 185,509,666.80, 278,370,788.40 and 70,576,693.20 is: 105,905,476.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,509,666.80 : 278,370,788.40 = 70,576,693.20 : x
  2. Step 2: Convert to fraction form
    185,509,666.80/278,370,788.40 = 70,576,693.20/x
  3. Step 3: Cross multiply
    185,509,666.80x = 278,370,788.40 × 70,576,693.20
  4. Step 4: Simplify right side
    185,509,666.80x = 19,646,489,728,748,920
  5. Step 5: Solve for x
    x = 19,646,489,728,748,920/185,509,666.80
  6. Step 6: Final answer
    x = 105,905,476.88

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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.