Home / 30,690,053.70-42,349,258.83-16,938,132.10

Finding the Fourth Proportional to 30,690,053.70, 42,349,258.83 and 16,938,132.10

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Solution

The fourth proportional to 30,690,053.70, 42,349,258.83 and 16,938,132.10 is: 23,372,958.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690,053.70 : 42,349,258.83 = 16,938,132.10 : x
  2. Step 2: Convert to fraction form
    30,690,053.70/42,349,258.83 = 16,938,132.10/x
  3. Step 3: Cross multiply
    30,690,053.70x = 42,349,258.83 × 16,938,132.10
  4. Step 4: Simplify right side
    30,690,053.70x = 717,317,340,399,631.50
  5. Step 5: Solve for x
    x = 717,317,340,399,631.50/30,690,053.70
  6. Step 6: Final answer
    x = 23,372,958.14

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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.