Home / 81,870,438.95-112,991,113.99-46,596,820.78

Finding the Fourth Proportional to 81,870,438.95, 112,991,113.99 and 46,596,820.78

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Solution

The fourth proportional to 81,870,438.95, 112,991,113.99 and 46,596,820.78 is: 64,309,251.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,870,438.95 : 112,991,113.99 = 46,596,820.78 : x
  2. Step 2: Convert to fraction form
    81,870,438.95/112,991,113.99 = 46,596,820.78/x
  3. Step 3: Cross multiply
    81,870,438.95x = 112,991,113.99 × 46,596,820.78
  4. Step 4: Simplify right side
    81,870,438.95x = 5,265,026,688,324,581
  5. Step 5: Solve for x
    x = 5,265,026,688,324,581/81,870,438.95
  6. Step 6: Final answer
    x = 64,309,251.98

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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.