Home / 105,301,911.21-145,311,320.36-57,616,133.72

Finding the Fourth Proportional to 105,301,911.21, 145,311,320.36 and 57,616,133.72

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Solution

The fourth proportional to 105,301,911.21, 145,311,320.36 and 57,616,133.72 is: 79,507,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,301,911.21 : 145,311,320.36 = 57,616,133.72 : x
  2. Step 2: Convert to fraction form
    105,301,911.21/145,311,320.36 = 57,616,133.72/x
  3. Step 3: Cross multiply
    105,301,911.21x = 145,311,320.36 × 57,616,133.72
  4. Step 4: Simplify right side
    105,301,911.21x = 8,372,276,463,876,881
  5. Step 5: Solve for x
    x = 8,372,276,463,876,881/105,301,911.21
  6. Step 6: Final answer
    x = 79,507,355.26

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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.