Home / 140,963,779.23-211,653,233.52-78,836,814.36

Finding the Fourth Proportional to 140,963,779.23, 211,653,233.52 and 78,836,814.36

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Solution

The fourth proportional to 140,963,779.23, 211,653,233.52 and 78,836,814.36 is: 118,371,306.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,963,779.23 : 211,653,233.52 = 78,836,814.36 : x
  2. Step 2: Convert to fraction form
    140,963,779.23/211,653,233.52 = 78,836,814.36/x
  3. Step 3: Cross multiply
    140,963,779.23x = 211,653,233.52 × 78,836,814.36
  4. Step 4: Simplify right side
    140,963,779.23x = 16,686,066,679,709,970
  5. Step 5: Solve for x
    x = 16,686,066,679,709,970/140,963,779.23
  6. Step 6: Final answer
    x = 118,371,306.24

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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.