Home / 18,878,109.34-28,321,424.51-5,748,701.72

Finding the Fourth Proportional to 18,878,109.34, 28,321,424.51 and 5,748,701.72

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Solution

The fourth proportional to 18,878,109.34, 28,321,424.51 and 5,748,701.72 is: 8,624,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878,109.34 : 28,321,424.51 = 5,748,701.72 : x
  2. Step 2: Convert to fraction form
    18,878,109.34/28,321,424.51 = 5,748,701.72/x
  3. Step 3: Cross multiply
    18,878,109.34x = 28,321,424.51 × 5,748,701.72
  4. Step 4: Simplify right side
    18,878,109.34x = 162,811,421,793,487.16
  5. Step 5: Solve for x
    x = 162,811,421,793,487.16/18,878,109.34
  6. Step 6: Final answer
    x = 8,624,349.98

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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.