Home / 103,457,815.79-142,718,355.78-64,284,709.19

Finding the Fourth Proportional to 103,457,815.79, 142,718,355.78 and 64,284,709.19

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Solution

The fourth proportional to 103,457,815.79, 142,718,355.78 and 64,284,709.19 is: 88,679,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,457,815.79 : 142,718,355.78 = 64,284,709.19 : x
  2. Step 2: Convert to fraction form
    103,457,815.79/142,718,355.78 = 64,284,709.19/x
  3. Step 3: Cross multiply
    103,457,815.79x = 142,718,355.78 × 64,284,709.19
  4. Step 4: Simplify right side
    103,457,815.79x = 9,174,607,997,392,256
  5. Step 5: Solve for x
    x = 9,174,607,997,392,256/103,457,815.79
  6. Step 6: Final answer
    x = 88,679,699.33

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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.