Home / 137,910,994,907.40-206,767,209,141.54-84,742,173,846.72

Finding the Fourth Proportional to 137,910,994,907.40, 206,767,209,141.54 and 84,742,173,846.72

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Solution

The fourth proportional to 137,910,994,907.40, 206,767,209,141.54 and 84,742,173,846.72 is: 127,052,254,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,910,994,907.40 : 206,767,209,141.54 = 84,742,173,846.72 : x
  2. Step 2: Convert to fraction form
    137,910,994,907.40/206,767,209,141.54 = 84,742,173,846.72/x
  3. Step 3: Cross multiply
    137,910,994,907.40x = 206,767,209,141.54 × 84,742,173,846.72
  4. Step 4: Simplify right side
    137,910,994,907.40x = 17,521,902,782,873,497,239,552
  5. Step 5: Solve for x
    x = 17,521,902,782,873,497,239,552/137,910,994,907.40
  6. Step 6: Final answer
    x = 127,052,254,206.70

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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.