Home / 145,430,909.28-200,704,489.20-83,575,905.12

Finding the Fourth Proportional to 145,430,909.28, 200,704,489.20 and 83,575,905.12

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Solution

The fourth proportional to 145,430,909.28, 200,704,489.20 and 83,575,905.12 is: 115,340,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,430,909.28 : 200,704,489.20 = 83,575,905.12 : x
  2. Step 2: Convert to fraction form
    145,430,909.28/200,704,489.20 = 83,575,905.12/x
  3. Step 3: Cross multiply
    145,430,909.28x = 200,704,489.20 × 83,575,905.12
  4. Step 4: Simplify right side
    145,430,909.28x = 16,774,059,346,537,264
  5. Step 5: Solve for x
    x = 16,774,059,346,537,264/145,430,909.28
  6. Step 6: Final answer
    x = 115,340,400.67

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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.