Home / 289,756,813.20-434,635,219.80-197,923,808.40

Finding the Fourth Proportional to 289,756,813.20, 434,635,219.80 and 197,923,808.40

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Solution

The fourth proportional to 289,756,813.20, 434,635,219.80 and 197,923,808.40 is: 296,885,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,756,813.20 : 434,635,219.80 = 197,923,808.40 : x
  2. Step 2: Convert to fraction form
    289,756,813.20/434,635,219.80 = 197,923,808.40/x
  3. Step 3: Cross multiply
    289,756,813.20x = 434,635,219.80 × 197,923,808.40
  4. Step 4: Simplify right side
    289,756,813.20x = 86,024,657,967,587,088
  5. Step 5: Solve for x
    x = 86,024,657,967,587,088/289,756,813.20
  6. Step 6: Final answer
    x = 296,885,712.60

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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.