Home / 112,571,322.79-155,350,011.98-64,860,208.64

Finding the Fourth Proportional to 112,571,322.79, 155,350,011.98 and 64,860,208.64

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Solution

The fourth proportional to 112,571,322.79, 155,350,011.98 and 64,860,208.64 is: 89,508,002.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,571,322.79 : 155,350,011.98 = 64,860,208.64 : x
  2. Step 2: Convert to fraction form
    112,571,322.79/155,350,011.98 = 64,860,208.64/x
  3. Step 3: Cross multiply
    112,571,322.79x = 155,350,011.98 × 64,860,208.64
  4. Step 4: Simplify right side
    112,571,322.79x = 10,076,034,189,243,880
  5. Step 5: Solve for x
    x = 10,076,034,189,243,880/112,571,322.79
  6. Step 6: Final answer
    x = 89,508,002.04

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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.