Home / 91,389,205.12-126,095,471.50-51,697,648.36

Finding the Fourth Proportional to 91,389,205.12, 126,095,471.50 and 51,697,648.36

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Solution

The fourth proportional to 91,389,205.12, 126,095,471.50 and 51,697,648.36 is: 71,330,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,389,205.12 : 126,095,471.50 = 51,697,648.36 : x
  2. Step 2: Convert to fraction form
    91,389,205.12/126,095,471.50 = 51,697,648.36/x
  3. Step 3: Cross multiply
    91,389,205.12x = 126,095,471.50 × 51,697,648.36
  4. Step 4: Simplify right side
    91,389,205.12x = 6,518,839,345,395,402
  5. Step 5: Solve for x
    x = 6,518,839,345,395,402/91,389,205.12
  6. Step 6: Final answer
    x = 71,330,518.05

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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.