Home / 19,461,220.90-29,191,831.35-12,294,859.30

Finding the Fourth Proportional to 19,461,220.90, 29,191,831.35 and 12,294,859.30

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Solution

The fourth proportional to 19,461,220.90, 29,191,831.35 and 12,294,859.30 is: 18,442,288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461,220.90 : 29,191,831.35 = 12,294,859.30 : x
  2. Step 2: Convert to fraction form
    19,461,220.90/29,191,831.35 = 12,294,859.30/x
  3. Step 3: Cross multiply
    19,461,220.90x = 29,191,831.35 × 12,294,859.30
  4. Step 4: Simplify right side
    19,461,220.90x = 358,909,459,157,579.12
  5. Step 5: Solve for x
    x = 358,909,459,157,579.12/19,461,220.90
  6. Step 6: Final answer
    x = 18,442,288.95

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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.