Home / 12,799,972,831.91-19,161,705,792.41-7,742,523,880.23

Finding the Fourth Proportional to 12,799,972,831.91, 19,161,705,792.41 and 7,742,523,880.23

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Solution

The fourth proportional to 12,799,972,831.91, 19,161,705,792.41 and 7,742,523,880.23 is: 11,590,646,842.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799,972,831.91 : 19,161,705,792.41 = 7,742,523,880.23 : x
  2. Step 2: Convert to fraction form
    12,799,972,831.91/19,161,705,792.41 = 7,742,523,880.23/x
  3. Step 3: Cross multiply
    12,799,972,831.91x = 19,161,705,792.41 × 7,742,523,880.23
  4. Step 4: Simplify right side
    12,799,972,831.91x = 148,359,964,683,637,194,752
  5. Step 5: Solve for x
    x = 148,359,964,683,637,194,752/12,799,972,831.91
  6. Step 6: Final answer
    x = 11,590,646,842.14

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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.