Home / 468,461,831.36-645,670,403-311,548,561.68

Finding the Fourth Proportional to 468,461,831.36, 645,670,403 and 311,548,561.68

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Solution

The fourth proportional to 468,461,831.36, 645,670,403 and 311,548,561.68 is: 429,400,373.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,461,831.36 : 645,670,403 = 311,548,561.68 : x
  2. Step 2: Convert to fraction form
    468,461,831.36/645,670,403 = 311,548,561.68/x
  3. Step 3: Cross multiply
    468,461,831.36x = 645,670,403 × 311,548,561.68
  4. Step 4: Simplify right side
    468,461,831.36x = 201,157,685,373,995,968
  5. Step 5: Solve for x
    x = 201,157,685,373,995,968/468,461,831.36
  6. Step 6: Final answer
    x = 429,400,373.54

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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.