Home / 12,964,297.50-17,890,657.65-7,163,080.74

Finding the Fourth Proportional to 12,964,297.50, 17,890,657.65 and 7,163,080.74

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Solution

The fourth proportional to 12,964,297.50, 17,890,657.65 and 7,163,080.74 is: 9,885,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964,297.50 : 17,890,657.65 = 7,163,080.74 : x
  2. Step 2: Convert to fraction form
    12,964,297.50/17,890,657.65 = 7,163,080.74/x
  3. Step 3: Cross multiply
    12,964,297.50x = 17,890,657.65 × 7,163,080.74
  4. Step 4: Simplify right side
    12,964,297.50x = 128,152,225,238,648.66
  5. Step 5: Solve for x
    x = 128,152,225,238,648.66/12,964,297.50
  6. Step 6: Final answer
    x = 9,885,011.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.