Home / 51,312,643.48-70,811,463.90-28,108,605.88

Finding the Fourth Proportional to 51,312,643.48, 70,811,463.90 and 28,108,605.88

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Solution

The fourth proportional to 51,312,643.48, 70,811,463.90 and 28,108,605.88 is: 38,789,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,312,643.48 : 70,811,463.90 = 28,108,605.88 : x
  2. Step 2: Convert to fraction form
    51,312,643.48/70,811,463.90 = 28,108,605.88/x
  3. Step 3: Cross multiply
    51,312,643.48x = 70,811,463.90 × 28,108,605.88
  4. Step 4: Simplify right side
    51,312,643.48x = 1,990,411,530,550,947.75
  5. Step 5: Solve for x
    x = 1,990,411,530,550,947.75/51,312,643.48
  6. Step 6: Final answer
    x = 38,789,884.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.