Home / 435,492,041.20-653,238,061.80-217,813,807.60

Finding the Fourth Proportional to 435,492,041.20, 653,238,061.80 and 217,813,807.60

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Solution

The fourth proportional to 435,492,041.20, 653,238,061.80 and 217,813,807.60 is: 326,720,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,492,041.20 : 653,238,061.80 = 217,813,807.60 : x
  2. Step 2: Convert to fraction form
    435,492,041.20/653,238,061.80 = 217,813,807.60/x
  3. Step 3: Cross multiply
    435,492,041.20x = 653,238,061.80 × 217,813,807.60
  4. Step 4: Simplify right side
    435,492,041.20x = 142,284,269,509,902,096
  5. Step 5: Solve for x
    x = 142,284,269,509,902,096/435,492,041.20
  6. Step 6: Final answer
    x = 326,720,711.40

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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.