Home / 15,013,385,032.38-20,717,101,925.43-8,908,685,507.39

Finding the Fourth Proportional to 15,013,385,032.38, 20,717,101,925.43 and 8,908,685,507.39

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Solution

The fourth proportional to 15,013,385,032.38, 20,717,101,925.43 and 8,908,685,507.39 is: 12,293,173,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013,385,032.38 : 20,717,101,925.43 = 8,908,685,507.39 : x
  2. Step 2: Convert to fraction form
    15,013,385,032.38/20,717,101,925.43 = 8,908,685,507.39/x
  3. Step 3: Cross multiply
    15,013,385,032.38x = 20,717,101,925.43 × 8,908,685,507.39
  4. Step 4: Simplify right side
    15,013,385,032.38x = 184,562,145,678,096,138,240
  5. Step 5: Solve for x
    x = 184,562,145,678,096,138,240/15,013,385,032.38
  6. Step 6: Final answer
    x = 12,293,173,410.26

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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.