Home / 247,346,427.60-371,019,641.40-85,788,363.60

Finding the Fourth Proportional to 247,346,427.60, 371,019,641.40 and 85,788,363.60

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Solution

The fourth proportional to 247,346,427.60, 371,019,641.40 and 85,788,363.60 is: 128,682,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,346,427.60 : 371,019,641.40 = 85,788,363.60 : x
  2. Step 2: Convert to fraction form
    247,346,427.60/371,019,641.40 = 85,788,363.60/x
  3. Step 3: Cross multiply
    247,346,427.60x = 371,019,641.40 × 85,788,363.60
  4. Step 4: Simplify right side
    247,346,427.60x = 31,829,167,899,164,808
  5. Step 5: Solve for x
    x = 31,829,167,899,164,808/247,346,427.60
  6. Step 6: Final answer
    x = 128,682,545.40

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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.