Home / 21,168,773.40-31,713,094.26-12,506,970.36

Finding the Fourth Proportional to 21,168,773.40, 31,713,094.26 and 12,506,970.36

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Solution

The fourth proportional to 21,168,773.40, 31,713,094.26 and 12,506,970.36 is: 18,736,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168,773.40 : 31,713,094.26 = 12,506,970.36 : x
  2. Step 2: Convert to fraction form
    21,168,773.40/31,713,094.26 = 12,506,970.36/x
  3. Step 3: Cross multiply
    21,168,773.40x = 31,713,094.26 × 12,506,970.36
  4. Step 4: Simplify right side
    21,168,773.40x = 396,634,729,933,706.12
  5. Step 5: Solve for x
    x = 396,634,729,933,706.12/21,168,773.40
  6. Step 6: Final answer
    x = 18,736,783.77

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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.