Home / 75,621,410.86-104,360,755.34-42,130,860.16

Finding the Fourth Proportional to 75,621,410.86, 104,360,755.34 and 42,130,860.16

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Solution

The fourth proportional to 75,621,410.86, 104,360,755.34 and 42,130,860.16 is: 58,142,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,621,410.86 : 104,360,755.34 = 42,130,860.16 : x
  2. Step 2: Convert to fraction form
    75,621,410.86/104,360,755.34 = 42,130,860.16/x
  3. Step 3: Cross multiply
    75,621,410.86x = 104,360,755.34 × 42,130,860.16
  4. Step 4: Simplify right side
    75,621,410.86x = 4,396,808,389,421,513
  5. Step 5: Solve for x
    x = 4,396,808,389,421,513/75,621,410.86
  6. Step 6: Final answer
    x = 58,142,374.49

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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.