Home / 70,614,021.46-105,920,875.47-18,798,636.82

Finding the Fourth Proportional to 70,614,021.46, 105,920,875.47 and 18,798,636.82

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Solution

The fourth proportional to 70,614,021.46, 105,920,875.47 and 18,798,636.82 is: 28,197,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,614,021.46 : 105,920,875.47 = 18,798,636.82 : x
  2. Step 2: Convert to fraction form
    70,614,021.46/105,920,875.47 = 18,798,636.82/x
  3. Step 3: Cross multiply
    70,614,021.46x = 105,920,875.47 × 18,798,636.82
  4. Step 4: Simplify right side
    70,614,021.46x = 1,991,168,069,616,976.75
  5. Step 5: Solve for x
    x = 1,991,168,069,616,976.75/70,614,021.46
  6. Step 6: Final answer
    x = 28,197,913.51

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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.