Home / 147,510,898-203,559,703.56-81,429,977.76

Finding the Fourth Proportional to 147,510,898, 203,559,703.56 and 81,429,977.76

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Solution

The fourth proportional to 147,510,898, 203,559,703.56 and 81,429,977.76 is: 112,370,423.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,510,898 : 203,559,703.56 = 81,429,977.76 : x
  2. Step 2: Convert to fraction form
    147,510,898/203,559,703.56 = 81,429,977.76/x
  3. Step 3: Cross multiply
    147,510,898x = 203,559,703.56 × 81,429,977.76
  4. Step 4: Simplify right side
    147,510,898x = 16,575,862,133,722,994
  5. Step 5: Solve for x
    x = 16,575,862,133,722,994/147,510,898
  6. Step 6: Final answer
    x = 112,370,423.87

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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.