Home / 145,004,138.20-217,506,207.30-87,673,245.40

Finding the Fourth Proportional to 145,004,138.20, 217,506,207.30 and 87,673,245.40

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Solution

The fourth proportional to 145,004,138.20, 217,506,207.30 and 87,673,245.40 is: 131,509,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,004,138.20 : 217,506,207.30 = 87,673,245.40 : x
  2. Step 2: Convert to fraction form
    145,004,138.20/217,506,207.30 = 87,673,245.40/x
  3. Step 3: Cross multiply
    145,004,138.20x = 217,506,207.30 × 87,673,245.40
  4. Step 4: Simplify right side
    145,004,138.20x = 19,069,475,088,636,172
  5. Step 5: Solve for x
    x = 19,069,475,088,636,172/145,004,138.20
  6. Step 6: Final answer
    x = 131,509,868.10

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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.