Home / 289,758,412.20-435,141,503.10-153,709,516.20

Finding the Fourth Proportional to 289,758,412.20, 435,141,503.10 and 153,709,516.20

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Solution

The fourth proportional to 289,758,412.20, 435,141,503.10 and 153,709,516.20 is: 230,831,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,758,412.20 : 435,141,503.10 = 153,709,516.20 : x
  2. Step 2: Convert to fraction form
    289,758,412.20/435,141,503.10 = 153,709,516.20/x
  3. Step 3: Cross multiply
    289,758,412.20x = 435,141,503.10 × 153,709,516.20
  4. Step 4: Simplify right side
    289,758,412.20x = 66,885,389,920,041,800
  5. Step 5: Solve for x
    x = 66,885,389,920,041,800/289,758,412.20
  6. Step 6: Final answer
    x = 230,831,572.45

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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.