Home / 100,218,716-138,299,475.84-58,968,280.16

Finding the Fourth Proportional to 100,218,716, 138,299,475.84 and 58,968,280.16

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Solution

The fourth proportional to 100,218,716, 138,299,475.84 and 58,968,280.16 is: 81,374,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,218,716 : 138,299,475.84 = 58,968,280.16 : x
  2. Step 2: Convert to fraction form
    100,218,716/138,299,475.84 = 58,968,280.16/x
  3. Step 3: Cross multiply
    100,218,716x = 138,299,475.84 × 58,968,280.16
  4. Step 4: Simplify right side
    100,218,716x = 8,155,282,237,314,271
  5. Step 5: Solve for x
    x = 8,155,282,237,314,271/100,218,716
  6. Step 6: Final answer
    x = 81,374,842.57

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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.