Home / 18,836,172,003.70-28,254,258,005.55-13,257,316,962.10

Finding the Fourth Proportional to 18,836,172,003.70, 28,254,258,005.55 and 13,257,316,962.10

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Solution

The fourth proportional to 18,836,172,003.70, 28,254,258,005.55 and 13,257,316,962.10 is: 19,885,975,443.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836,172,003.70 : 28,254,258,005.55 = 13,257,316,962.10 : x
  2. Step 2: Convert to fraction form
    18,836,172,003.70/28,254,258,005.55 = 13,257,316,962.10/x
  3. Step 3: Cross multiply
    18,836,172,003.70x = 28,254,258,005.55 × 13,257,316,962.10
  4. Step 4: Simplify right side
    18,836,172,003.70x = 374,575,653,908,527,710,208
  5. Step 5: Solve for x
    x = 374,575,653,908,527,710,208/18,836,172,003.70
  6. Step 6: Final answer
    x = 19,885,975,443.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.