Home / 289,658,064.70-434,990,981.85-153,609,168.70

Finding the Fourth Proportional to 289,658,064.70, 434,990,981.85 and 153,609,168.70

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Solution

The fourth proportional to 289,658,064.70, 434,990,981.85 and 153,609,168.70 is: 230,680,969.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,658,064.70 : 434,990,981.85 = 153,609,168.70 : x
  2. Step 2: Convert to fraction form
    289,658,064.70/434,990,981.85 = 153,609,168.70/x
  3. Step 3: Cross multiply
    289,658,064.70x = 434,990,981.85 × 153,609,168.70
  4. Step 4: Simplify right side
    289,658,064.70x = 66,818,603,113,975,288
  5. Step 5: Solve for x
    x = 66,818,603,113,975,288/289,658,064.70
  6. Step 6: Final answer
    x = 230,680,969.24

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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.