Home / 12,780,203.80-17,637,957.52-7,623,565.35

Finding the Fourth Proportional to 12,780,203.80, 17,637,957.52 and 7,623,565.35

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Solution

The fourth proportional to 12,780,203.80, 17,637,957.52 and 7,623,565.35 is: 10,521,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,203.80 : 17,637,957.52 = 7,623,565.35 : x
  2. Step 2: Convert to fraction form
    12,780,203.80/17,637,957.52 = 7,623,565.35/x
  3. Step 3: Cross multiply
    12,780,203.80x = 17,637,957.52 × 7,623,565.35
  4. Step 4: Simplify right side
    12,780,203.80x = 134,464,121,775,185
  5. Step 5: Solve for x
    x = 134,464,121,775,185/12,780,203.80
  6. Step 6: Final answer
    x = 10,521,281.50

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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.