Home / 278,828,205,176.15-384,771,557,530.59-164,679,780,209.78

Finding the Fourth Proportional to 278,828,205,176.15, 384,771,557,530.59 and 164,679,780,209.78

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Solution

The fourth proportional to 278,828,205,176.15, 384,771,557,530.59 and 164,679,780,209.78 is: 227,251,384,002.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,828,205,176.15 : 384,771,557,530.59 = 164,679,780,209.78 : x
  2. Step 2: Convert to fraction form
    278,828,205,176.15/384,771,557,530.59 = 164,679,780,209.78/x
  3. Step 3: Cross multiply
    278,828,205,176.15x = 384,771,557,530.59 × 164,679,780,209.78
  4. Step 4: Simplify right side
    278,828,205,176.15x = 63,364,095,525,112,286,019,584
  5. Step 5: Solve for x
    x = 63,364,095,525,112,286,019,584/278,828,205,176.15
  6. Step 6: Final answer
    x = 227,251,384,002.14

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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.