Home / 13,316,371,145.20-18,376,445,729.10-7,212,571,851.16

Finding the Fourth Proportional to 13,316,371,145.20, 18,376,445,729.10 and 7,212,571,851.16

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Solution

The fourth proportional to 13,316,371,145.20, 18,376,445,729.10 and 7,212,571,851.16 is: 9,953,269,831.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316,371,145.20 : 18,376,445,729.10 = 7,212,571,851.16 : x
  2. Step 2: Convert to fraction form
    13,316,371,145.20/18,376,445,729.10 = 7,212,571,851.16/x
  3. Step 3: Cross multiply
    13,316,371,145.20x = 18,376,445,729.10 × 7,212,571,851.16
  4. Step 4: Simplify right side
    13,316,371,145.20x = 132,541,435,190,076,047,360
  5. Step 5: Solve for x
    x = 132,541,435,190,076,047,360/13,316,371,145.20
  6. Step 6: Final answer
    x = 9,953,269,831.91

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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.