Home / 38,968,802.15-53,777,089.52-21,087,022.76

Finding the Fourth Proportional to 38,968,802.15, 53,777,089.52 and 21,087,022.76

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Solution

The fourth proportional to 38,968,802.15, 53,777,089.52 and 21,087,022.76 is: 29,100,168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,968,802.15 : 53,777,089.52 = 21,087,022.76 : x
  2. Step 2: Convert to fraction form
    38,968,802.15/53,777,089.52 = 21,087,022.76/x
  3. Step 3: Cross multiply
    38,968,802.15x = 53,777,089.52 × 21,087,022.76
  4. Step 4: Simplify right side
    38,968,802.15x = 1,133,998,710,300,476.75
  5. Step 5: Solve for x
    x = 1,133,998,710,300,476.75/38,968,802.15
  6. Step 6: Final answer
    x = 29,100,168.54

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1.5x scale

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.