Home / 437,036,455.20-655,554,682.80-434,485,538.40

Finding the Fourth Proportional to 437,036,455.20, 655,554,682.80 and 434,485,538.40

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Solution

The fourth proportional to 437,036,455.20, 655,554,682.80 and 434,485,538.40 is: 651,728,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,036,455.20 : 655,554,682.80 = 434,485,538.40 : x
  2. Step 2: Convert to fraction form
    437,036,455.20/655,554,682.80 = 434,485,538.40/x
  3. Step 3: Cross multiply
    437,036,455.20x = 655,554,682.80 × 434,485,538.40
  4. Step 4: Simplify right side
    437,036,455.20x = 284,829,029,306,999,168
  5. Step 5: Solve for x
    x = 284,829,029,306,999,168/437,036,455.20
  6. Step 6: Final answer
    x = 651,728,307.60

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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.