Home / 435,696,539.20-653,544,808.80-402,440,142.40

Finding the Fourth Proportional to 435,696,539.20, 653,544,808.80 and 402,440,142.40

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Solution

The fourth proportional to 435,696,539.20, 653,544,808.80 and 402,440,142.40 is: 603,660,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,696,539.20 : 653,544,808.80 = 402,440,142.40 : x
  2. Step 2: Convert to fraction form
    435,696,539.20/653,544,808.80 = 402,440,142.40/x
  3. Step 3: Cross multiply
    435,696,539.20x = 653,544,808.80 × 402,440,142.40
  4. Step 4: Simplify right side
    435,696,539.20x = 263,012,665,918,252,736
  5. Step 5: Solve for x
    x = 263,012,665,918,252,736/435,696,539.20
  6. Step 6: Final answer
    x = 603,660,213.60

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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.