Home / 553,431,552.85-763,740,624.75-315,273,207.67

Finding the Fourth Proportional to 553,431,552.85, 763,740,624.75 and 315,273,207.67

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Solution

The fourth proportional to 553,431,552.85, 763,740,624.75 and 315,273,207.67 is: 435,079,921.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,431,552.85 : 763,740,624.75 = 315,273,207.67 : x
  2. Step 2: Convert to fraction form
    553,431,552.85/763,740,624.75 = 315,273,207.67/x
  3. Step 3: Cross multiply
    553,431,552.85x = 763,740,624.75 × 315,273,207.67
  4. Step 4: Simplify right side
    553,431,552.85x = 240,786,956,592,822,304
  5. Step 5: Solve for x
    x = 240,786,956,592,822,304/553,431,552.85
  6. Step 6: Final answer
    x = 435,079,921.54

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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.