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Finding the Fourth Proportional to 199,478,570.70, 299,247,774.33 and 70,063,370.70

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Solution

The fourth proportional to 199,478,570.70, 299,247,774.33 and 70,063,370.70 is: 105,105,564.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,478,570.70 : 299,247,774.33 = 70,063,370.70 : x
  2. Step 2: Convert to fraction form
    199,478,570.70/299,247,774.33 = 70,063,370.70/x
  3. Step 3: Cross multiply
    199,478,570.70x = 299,247,774.33 × 70,063,370.70
  4. Step 4: Simplify right side
    199,478,570.70x = 20,966,307,744,032,732
  5. Step 5: Solve for x
    x = 20,966,307,744,032,732/199,478,570.70
  6. Step 6: Final answer
    x = 105,105,564.32

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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.