Home / 12,908,591,293.16-17,813,385,676.80-7,192,580,383.64

Finding the Fourth Proportional to 12,908,591,293.16, 17,813,385,676.80 and 7,192,580,383.64

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Solution

The fourth proportional to 12,908,591,293.16, 17,813,385,676.80 and 7,192,580,383.64 is: 9,925,498,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908,591,293.16 : 17,813,385,676.80 = 7,192,580,383.64 : x
  2. Step 2: Convert to fraction form
    12,908,591,293.16/17,813,385,676.80 = 7,192,580,383.64/x
  3. Step 3: Cross multiply
    12,908,591,293.16x = 17,813,385,676.80 × 7,192,580,383.64
  4. Step 4: Simplify right side
    12,908,591,293.16x = 128,124,208,385,165,426,688
  5. Step 5: Solve for x
    x = 128,124,208,385,165,426,688/12,908,591,293.16
  6. Step 6: Final answer
    x = 9,925,498,877.10

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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.