Home / 139,037,365.98-208,592,395.47-80,688,953.52

Finding the Fourth Proportional to 139,037,365.98, 208,592,395.47 and 80,688,953.52

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Solution

The fourth proportional to 139,037,365.98, 208,592,395.47 and 80,688,953.52 is: 121,054,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,037,365.98 : 208,592,395.47 = 80,688,953.52 : x
  2. Step 2: Convert to fraction form
    139,037,365.98/208,592,395.47 = 80,688,953.52/x
  3. Step 3: Cross multiply
    139,037,365.98x = 208,592,395.47 × 80,688,953.52
  4. Step 4: Simplify right side
    139,037,365.98x = 16,831,102,102,704,288
  5. Step 5: Solve for x
    x = 16,831,102,102,704,288/139,037,365.98
  6. Step 6: Final answer
    x = 121,054,523.61

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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.