Home / 278,011,095.39-383,658,205.77-152,571,415.97

Finding the Fourth Proportional to 278,011,095.39, 383,658,205.77 and 152,571,415.97

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Solution

The fourth proportional to 278,011,095.39, 383,658,205.77 and 152,571,415.97 is: 210,550,142.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,011,095.39 : 383,658,205.77 = 152,571,415.97 : x
  2. Step 2: Convert to fraction form
    278,011,095.39/383,658,205.77 = 152,571,415.97/x
  3. Step 3: Cross multiply
    278,011,095.39x = 383,658,205.77 × 152,571,415.97
  4. Step 4: Simplify right side
    278,011,095.39x = 58,535,275,703,797,664
  5. Step 5: Solve for x
    x = 58,535,275,703,797,664/278,011,095.39
  6. Step 6: Final answer
    x = 210,550,142.33

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1.5x scale

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.