Home / 139,196,965.32-208,477,395-66,464,688.24

Finding the Fourth Proportional to 139,196,965.32, 208,477,395 and 66,464,688.24

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Solution

The fourth proportional to 139,196,965.32, 208,477,395 and 66,464,688.24 is: 99,545,166.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,196,965.32 : 208,477,395 = 66,464,688.24 : x
  2. Step 2: Convert to fraction form
    139,196,965.32/208,477,395 = 66,464,688.24/x
  3. Step 3: Cross multiply
    139,196,965.32x = 208,477,395 × 66,464,688.24
  4. Step 4: Simplify right side
    139,196,965.32x = 13,856,385,063,762,336
  5. Step 5: Solve for x
    x = 13,856,385,063,762,336/139,196,965.32
  6. Step 6: Final answer
    x = 99,545,166.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.