Home / 147,510,887.91-203,559,690.12-81,429,967.89

Finding the Fourth Proportional to 147,510,887.91, 203,559,690.12 and 81,429,967.89

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Solution

The fourth proportional to 147,510,887.91, 203,559,690.12 and 81,429,967.89 is: 112,370,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,510,887.91 : 203,559,690.12 = 81,429,967.89 : x
  2. Step 2: Convert to fraction form
    147,510,887.91/203,559,690.12 = 81,429,967.89/x
  3. Step 3: Cross multiply
    147,510,887.91x = 203,559,690.12 × 81,429,967.89
  4. Step 4: Simplify right side
    147,510,887.91x = 16,575,859,030,169,950
  5. Step 5: Solve for x
    x = 16,575,859,030,169,950/147,510,887.91
  6. Step 6: Final answer
    x = 112,370,410.52

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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.