Home / 128,667,002.55-192,953,783.02-70,417,730.13

Finding the Fourth Proportional to 128,667,002.55, 192,953,783.02 and 70,417,730.13

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Solution

The fourth proportional to 128,667,002.55, 192,953,783.02 and 70,417,730.13 is: 105,601,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,667,002.55 : 192,953,783.02 = 70,417,730.13 : x
  2. Step 2: Convert to fraction form
    128,667,002.55/192,953,783.02 = 70,417,730.13/x
  3. Step 3: Cross multiply
    128,667,002.55x = 192,953,783.02 × 70,417,730.13
  4. Step 4: Simplify right side
    128,667,002.55x = 13,587,367,420,264,936
  5. Step 5: Solve for x
    x = 13,587,367,420,264,936/128,667,002.55
  6. Step 6: Final answer
    x = 105,601,025.52

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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.