Home / 289,728,457.20-434,592,685.80-197,895,452.40

Finding the Fourth Proportional to 289,728,457.20, 434,592,685.80 and 197,895,452.40

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Solution

The fourth proportional to 289,728,457.20, 434,592,685.80 and 197,895,452.40 is: 296,843,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,728,457.20 : 434,592,685.80 = 197,895,452.40 : x
  2. Step 2: Convert to fraction form
    289,728,457.20/434,592,685.80 = 197,895,452.40/x
  3. Step 3: Cross multiply
    289,728,457.20x = 434,592,685.80 × 197,895,452.40
  4. Step 4: Simplify right side
    289,728,457.20x = 86,003,916,166,122,064
  5. Step 5: Solve for x
    x = 86,003,916,166,122,064/289,728,457.20
  6. Step 6: Final answer
    x = 296,843,178.60

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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.