Home / 290,035,800.28-400,254,506.22-157,880,595.34

Finding the Fourth Proportional to 290,035,800.28, 400,254,506.22 and 157,880,595.34

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Solution

The fourth proportional to 290,035,800.28, 400,254,506.22 and 157,880,595.34 is: 217,877,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,035,800.28 : 400,254,506.22 = 157,880,595.34 : x
  2. Step 2: Convert to fraction form
    290,035,800.28/400,254,506.22 = 157,880,595.34/x
  3. Step 3: Cross multiply
    290,035,800.28x = 400,254,506.22 × 157,880,595.34
  4. Step 4: Simplify right side
    290,035,800.28x = 63,192,419,729,531,336
  5. Step 5: Solve for x
    x = 63,192,419,729,531,336/290,035,800.28
  6. Step 6: Final answer
    x = 217,877,998.75

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1.5x scale

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.