Home / 27,926,189,078.18-38,538,958,549.88-15,239,742,457.37

Finding the Fourth Proportional to 27,926,189,078.18, 38,538,958,549.88 and 15,239,742,457.37

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Solution

The fourth proportional to 27,926,189,078.18, 38,538,958,549.88 and 15,239,742,457.37 is: 21,031,290,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,926,189,078.18 : 38,538,958,549.88 = 15,239,742,457.37 : x
  2. Step 2: Convert to fraction form
    27,926,189,078.18/38,538,958,549.88 = 15,239,742,457.37/x
  3. Step 3: Cross multiply
    27,926,189,078.18x = 38,538,958,549.88 × 15,239,742,457.37
  4. Step 4: Simplify right side
    27,926,189,078.18x = 587,323,802,875,428,798,464
  5. Step 5: Solve for x
    x = 587,323,802,875,428,798,464/27,926,189,078.18
  6. Step 6: Final answer
    x = 21,031,290,779.82

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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.