Home / 421,353,431.20-632,030,146.80-370,335,095.20

Finding the Fourth Proportional to 421,353,431.20, 632,030,146.80 and 370,335,095.20

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Solution

The fourth proportional to 421,353,431.20, 632,030,146.80 and 370,335,095.20 is: 555,502,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,353,431.20 : 632,030,146.80 = 370,335,095.20 : x
  2. Step 2: Convert to fraction form
    421,353,431.20/632,030,146.80 = 370,335,095.20/x
  3. Step 3: Cross multiply
    421,353,431.20x = 632,030,146.80 × 370,335,095.20
  4. Step 4: Simplify right side
    421,353,431.20x = 234,062,944,584,447,936
  5. Step 5: Solve for x
    x = 234,062,944,584,447,936/421,353,431.20
  6. Step 6: Final answer
    x = 555,502,642.80

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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.