Home / 186,915,916.80-280,373,875.20-65,731,622.40

Finding the Fourth Proportional to 186,915,916.80, 280,373,875.20 and 65,731,622.40

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Solution

The fourth proportional to 186,915,916.80, 280,373,875.20 and 65,731,622.40 is: 98,597,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,915,916.80 : 280,373,875.20 = 65,731,622.40 : x
  2. Step 2: Convert to fraction form
    186,915,916.80/280,373,875.20 = 65,731,622.40/x
  3. Step 3: Cross multiply
    186,915,916.80x = 280,373,875.20 × 65,731,622.40
  4. Step 4: Simplify right side
    186,915,916.80x = 18,429,429,695,471,124
  5. Step 5: Solve for x
    x = 18,429,429,695,471,124/186,915,916.80
  6. Step 6: Final answer
    x = 98,597,433.60

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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.