Home / 102,528,015.40-153,792,023.10-53,939,420.20

Finding the Fourth Proportional to 102,528,015.40, 153,792,023.10 and 53,939,420.20

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Solution

The fourth proportional to 102,528,015.40, 153,792,023.10 and 53,939,420.20 is: 80,909,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,528,015.40 : 153,792,023.10 = 53,939,420.20 : x
  2. Step 2: Convert to fraction form
    102,528,015.40/153,792,023.10 = 53,939,420.20/x
  3. Step 3: Cross multiply
    102,528,015.40x = 153,792,023.10 × 53,939,420.20
  4. Step 4: Simplify right side
    102,528,015.40x = 8,295,452,557,399,007
  5. Step 5: Solve for x
    x = 8,295,452,557,399,007/102,528,015.40
  6. Step 6: Final answer
    x = 80,909,130.30

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1.5x scale

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.