Home / 145,865,180.51-201,294,555.57-78,884,138.62

Finding the Fourth Proportional to 145,865,180.51, 201,294,555.57 and 78,884,138.62

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Solution

The fourth proportional to 145,865,180.51, 201,294,555.57 and 78,884,138.62 is: 108,860,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865,180.51 : 201,294,555.57 = 78,884,138.62 : x
  2. Step 2: Convert to fraction form
    145,865,180.51/201,294,555.57 = 78,884,138.62/x
  3. Step 3: Cross multiply
    145,865,180.51x = 201,294,555.57 × 78,884,138.62
  4. Step 4: Simplify right side
    145,865,180.51x = 15,878,947,625,035,174
  5. Step 5: Solve for x
    x = 15,878,947,625,035,174/145,865,180.51
  6. Step 6: Final answer
    x = 108,860,439.27

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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.