Home / 124,671,347.40-172,038,260.94-71,739,511.76

Finding the Fourth Proportional to 124,671,347.40, 172,038,260.94 and 71,739,511.76

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Solution

The fourth proportional to 124,671,347.40, 172,038,260.94 and 71,739,511.76 is: 98,995,808.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,671,347.40 : 172,038,260.94 = 71,739,511.76 : x
  2. Step 2: Convert to fraction form
    124,671,347.40/172,038,260.94 = 71,739,511.76/x
  3. Step 3: Cross multiply
    124,671,347.40x = 172,038,260.94 × 71,739,511.76
  4. Step 4: Simplify right side
    124,671,347.40x = 12,341,940,843,875,080
  5. Step 5: Solve for x
    x = 12,341,940,843,875,080/124,671,347.40
  6. Step 6: Final answer
    x = 98,995,808.59

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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.