Home / 129,300,555.36-193,946,109.06-38,421,782.40

Finding the Fourth Proportional to 129,300,555.36, 193,946,109.06 and 38,421,782.40

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Solution

The fourth proportional to 129,300,555.36, 193,946,109.06 and 38,421,782.40 is: 57,631,269.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,300,555.36 : 193,946,109.06 = 38,421,782.40 : x
  2. Step 2: Convert to fraction form
    129,300,555.36/193,946,109.06 = 38,421,782.40/x
  3. Step 3: Cross multiply
    129,300,555.36x = 193,946,109.06 × 38,421,782.40
  4. Step 4: Simplify right side
    129,300,555.36x = 7,451,755,199,629,988
  5. Step 5: Solve for x
    x = 7,451,755,199,629,988/129,300,555.36
  6. Step 6: Final answer
    x = 57,631,269.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.