Home / 315,421,225.53-435,306,104.32-179,637,202.96

Finding the Fourth Proportional to 315,421,225.53, 435,306,104.32 and 179,637,202.96

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Solution

The fourth proportional to 315,421,225.53, 435,306,104.32 and 179,637,202.96 is: 247,913,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,421,225.53 : 435,306,104.32 = 179,637,202.96 : x
  2. Step 2: Convert to fraction form
    315,421,225.53/435,306,104.32 = 179,637,202.96/x
  3. Step 3: Cross multiply
    315,421,225.53x = 435,306,104.32 × 179,637,202.96
  4. Step 4: Simplify right side
    315,421,225.53x = 78,197,171,011,009,680
  5. Step 5: Solve for x
    x = 78,197,171,011,009,680/315,421,225.53
  6. Step 6: Final answer
    x = 247,913,471.52

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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.