Home / 316,900,153.12-437,400,005.52-193,209,031.84

Finding the Fourth Proportional to 316,900,153.12, 437,400,005.52 and 193,209,031.84

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Solution

The fourth proportional to 316,900,153.12, 437,400,005.52 and 193,209,031.84 is: 266,675,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,900,153.12 : 437,400,005.52 = 193,209,031.84 : x
  2. Step 2: Convert to fraction form
    316,900,153.12/437,400,005.52 = 193,209,031.84/x
  3. Step 3: Cross multiply
    316,900,153.12x = 437,400,005.52 × 193,209,031.84
  4. Step 4: Simplify right side
    316,900,153.12x = 84,509,631,593,329,856
  5. Step 5: Solve for x
    x = 84,509,631,593,329,856/316,900,153.12
  6. Step 6: Final answer
    x = 266,675,893.85

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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.