Home / 7,019,742.16-10,528,281.42-3,421,890.64

Finding the Fourth Proportional to 7,019,742.16, 10,528,281.42 and 3,421,890.64

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Solution

The fourth proportional to 7,019,742.16, 10,528,281.42 and 3,421,890.64 is: 5,132,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019,742.16 : 10,528,281.42 = 3,421,890.64 : x
  2. Step 2: Convert to fraction form
    7,019,742.16/10,528,281.42 = 3,421,890.64/x
  3. Step 3: Cross multiply
    7,019,742.16x = 10,528,281.42 × 3,421,890.64
  4. Step 4: Simplify right side
    7,019,742.16x = 36,026,627,646,383.91
  5. Step 5: Solve for x
    x = 36,026,627,646,383.91/7,019,742.16
  6. Step 6: Final answer
    x = 5,132,186.74

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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.