Home / 21,020,607.81-29,008,398.69-11,727,624.96

Finding the Fourth Proportional to 21,020,607.81, 29,008,398.69 and 11,727,624.96

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Solution

The fourth proportional to 21,020,607.81, 29,008,398.69 and 11,727,624.96 is: 16,184,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,607.81 : 29,008,398.69 = 11,727,624.96 : x
  2. Step 2: Convert to fraction form
    21,020,607.81/29,008,398.69 = 11,727,624.96/x
  3. Step 3: Cross multiply
    21,020,607.81x = 29,008,398.69 × 11,727,624.96
  4. Step 4: Simplify right side
    21,020,607.81x = 340,199,620,526,475.38
  5. Step 5: Solve for x
    x = 340,199,620,526,475.38/21,020,607.81
  6. Step 6: Final answer
    x = 16,184,100.08

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1.5x scale

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.