Home / 15,487,870.11-21,395,116.76-12,410,834.01

Finding the Fourth Proportional to 15,487,870.11, 21,395,116.76 and 12,410,834.01

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Solution

The fourth proportional to 15,487,870.11, 21,395,116.76 and 12,410,834.01 is: 17,144,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487,870.11 : 21,395,116.76 = 12,410,834.01 : x
  2. Step 2: Convert to fraction form
    15,487,870.11/21,395,116.76 = 12,410,834.01/x
  3. Step 3: Cross multiply
    15,487,870.11x = 21,395,116.76 × 12,410,834.01
  4. Step 4: Simplify right side
    15,487,870.11x = 265,531,242,670,874.81
  5. Step 5: Solve for x
    x = 265,531,242,670,874.81/15,487,870.11
  6. Step 6: Final answer
    x = 17,144,464.72

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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.