Home / 13,405,742,405.75-18,499,240,795.89-7,384,118,181.95

Finding the Fourth Proportional to 13,405,742,405.75, 18,499,240,795.89 and 7,384,118,181.95

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Solution

The fourth proportional to 13,405,742,405.75, 18,499,240,795.89 and 7,384,118,181.95 is: 10,189,706,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405,742,405.75 : 18,499,240,795.89 = 7,384,118,181.95 : x
  2. Step 2: Convert to fraction form
    13,405,742,405.75/18,499,240,795.89 = 7,384,118,181.95/x
  3. Step 3: Cross multiply
    13,405,742,405.75x = 18,499,240,795.89 × 7,384,118,181.95
  4. Step 4: Simplify right side
    13,405,742,405.75x = 136,600,580,313,110,036,480
  5. Step 5: Solve for x
    x = 136,600,580,313,110,036,480/13,405,742,405.75
  6. Step 6: Final answer
    x = 10,189,706,483.88

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1.5x scale

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.