Home / 435,492,047.20-653,238,070.80-217,813,813.60

Finding the Fourth Proportional to 435,492,047.20, 653,238,070.80 and 217,813,813.60

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Solution

The fourth proportional to 435,492,047.20, 653,238,070.80 and 217,813,813.60 is: 326,720,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,492,047.20 : 653,238,070.80 = 217,813,813.60 : x
  2. Step 2: Convert to fraction form
    435,492,047.20/653,238,070.80 = 217,813,813.60/x
  3. Step 3: Cross multiply
    435,492,047.20x = 653,238,070.80 × 217,813,813.60
  4. Step 4: Simplify right side
    435,492,047.20x = 142,284,275,389,654,784
  5. Step 5: Solve for x
    x = 142,284,275,389,654,784/435,492,047.20
  6. Step 6: Final answer
    x = 326,720,720.40

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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.