Home / 314,928,907.20-472,393,360.80-199,287,345.60

Finding the Fourth Proportional to 314,928,907.20, 472,393,360.80 and 199,287,345.60

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Solution

The fourth proportional to 314,928,907.20, 472,393,360.80 and 199,287,345.60 is: 298,931,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,907.20 : 472,393,360.80 = 199,287,345.60 : x
  2. Step 2: Convert to fraction form
    314,928,907.20/472,393,360.80 = 199,287,345.60/x
  3. Step 3: Cross multiply
    314,928,907.20x = 472,393,360.80 × 199,287,345.60
  4. Step 4: Simplify right side
    314,928,907.20x = 94,142,018,952,895,088
  5. Step 5: Solve for x
    x = 94,142,018,952,895,088/314,928,907.20
  6. Step 6: Final answer
    x = 298,931,018.40

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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.