Home / 161,682,745.30-242,559,547.35-79,840,831.30

Finding the Fourth Proportional to 161,682,745.30, 242,559,547.35 and 79,840,831.30

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Solution

The fourth proportional to 161,682,745.30, 242,559,547.35 and 79,840,831.30 is: 119,778,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,682,745.30 : 242,559,547.35 = 79,840,831.30 : x
  2. Step 2: Convert to fraction form
    161,682,745.30/242,559,547.35 = 79,840,831.30/x
  3. Step 3: Cross multiply
    161,682,745.30x = 242,559,547.35 × 79,840,831.30
  4. Step 4: Simplify right side
    161,682,745.30x = 19,366,155,900,175,712
  5. Step 5: Solve for x
    x = 19,366,155,900,175,712/161,682,745.30
  6. Step 6: Final answer
    x = 119,778,742.40

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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.