Home / 498,900,056.45-688,486,538.81-275,896,742.49

Finding the Fourth Proportional to 498,900,056.45, 688,486,538.81 and 275,896,742.49

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Solution

The fourth proportional to 498,900,056.45, 688,486,538.81 and 275,896,742.49 is: 380,739,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,900,056.45 : 688,486,538.81 = 275,896,742.49 : x
  2. Step 2: Convert to fraction form
    498,900,056.45/688,486,538.81 = 275,896,742.49/x
  3. Step 3: Cross multiply
    498,900,056.45x = 688,486,538.81 × 275,896,742.49
  4. Step 4: Simplify right side
    498,900,056.45x = 189,951,193,306,583,712
  5. Step 5: Solve for x
    x = 189,951,193,306,583,712/498,900,056.45
  6. Step 6: Final answer
    x = 380,739,971.57

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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.