Home / 219,343,477.25-302,726,486.25-138,882,947.65

Finding the Fourth Proportional to 219,343,477.25, 302,726,486.25 and 138,882,947.65

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Solution

The fourth proportional to 219,343,477.25, 302,726,486.25 and 138,882,947.65 is: 191,679,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,343,477.25 : 302,726,486.25 = 138,882,947.65 : x
  2. Step 2: Convert to fraction form
    219,343,477.25/302,726,486.25 = 138,882,947.65/x
  3. Step 3: Cross multiply
    219,343,477.25x = 302,726,486.25 × 138,882,947.65
  4. Step 4: Simplify right side
    219,343,477.25x = 42,043,546,742,127,200
  5. Step 5: Solve for x
    x = 42,043,546,742,127,200/219,343,477.25
  6. Step 6: Final answer
    x = 191,679,038.14

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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.