Home / 147,510,903.40-203,559,710.94-81,429,983.20

Finding the Fourth Proportional to 147,510,903.40, 203,559,710.94 and 81,429,983.20

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Solution

The fourth proportional to 147,510,903.40, 203,559,710.94 and 81,429,983.20 is: 112,370,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,510,903.40 : 203,559,710.94 = 81,429,983.20 : x
  2. Step 2: Convert to fraction form
    147,510,903.40/203,559,710.94 = 81,429,983.20/x
  3. Step 3: Cross multiply
    147,510,903.40x = 203,559,710.94 × 81,429,983.20
  4. Step 4: Simplify right side
    147,510,903.40x = 16,575,863,842,041,056
  5. Step 5: Solve for x
    x = 16,575,863,842,041,056/147,510,903.40
  6. Step 6: Final answer
    x = 112,370,431.34

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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.