Home / 113,386,353.40-156,473,124.78-61,878,129.40

Finding the Fourth Proportional to 113,386,353.40, 156,473,124.78 and 61,878,129.40

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Solution

The fourth proportional to 113,386,353.40, 156,473,124.78 and 61,878,129.40 is: 85,391,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,386,353.40 : 156,473,124.78 = 61,878,129.40 : x
  2. Step 2: Convert to fraction form
    113,386,353.40/156,473,124.78 = 61,878,129.40/x
  3. Step 3: Cross multiply
    113,386,353.40x = 156,473,124.78 × 61,878,129.40
  4. Step 4: Simplify right side
    113,386,353.40x = 9,682,264,262,759,186
  5. Step 5: Solve for x
    x = 9,682,264,262,759,186/113,386,353.40
  6. Step 6: Final answer
    x = 85,391,795.15

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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.