Home / 219,411,322.90-302,785,947.93-120,290,884.18

Finding the Fourth Proportional to 219,411,322.90, 302,785,947.93 and 120,290,884.18

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Solution

The fourth proportional to 219,411,322.90, 302,785,947.93 and 120,290,884.18 is: 166,000,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,411,322.90 : 302,785,947.93 = 120,290,884.18 : x
  2. Step 2: Convert to fraction form
    219,411,322.90/302,785,947.93 = 120,290,884.18/x
  3. Step 3: Cross multiply
    219,411,322.90x = 302,785,947.93 × 120,290,884.18
  4. Step 4: Simplify right side
    219,411,322.90x = 36,422,389,393,779,144
  5. Step 5: Solve for x
    x = 36,422,389,393,779,144/219,411,322.90
  6. Step 6: Final answer
    x = 166,000,500.40

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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.