Home / 102,528,015.90-153,792,023.85-53,939,420.70

Finding the Fourth Proportional to 102,528,015.90, 153,792,023.85 and 53,939,420.70

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Solution

The fourth proportional to 102,528,015.90, 153,792,023.85 and 53,939,420.70 is: 80,909,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,528,015.90 : 153,792,023.85 = 53,939,420.70 : x
  2. Step 2: Convert to fraction form
    102,528,015.90/153,792,023.85 = 53,939,420.70/x
  3. Step 3: Cross multiply
    102,528,015.90x = 153,792,023.85 × 53,939,420.70
  4. Step 4: Simplify right side
    102,528,015.90x = 8,295,452,674,749,584
  5. Step 5: Solve for x
    x = 8,295,452,674,749,584/102,528,015.90
  6. Step 6: Final answer
    x = 80,909,131.05

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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.