Home / 660,154,072.20-989,601,252.30-245,519,867.40

Finding the Fourth Proportional to 660,154,072.20, 989,601,252.30 and 245,519,867.40

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Solution

The fourth proportional to 660,154,072.20, 989,601,252.30 and 245,519,867.40 is: 368,045,549.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,154,072.20 : 989,601,252.30 = 245,519,867.40 : x
  2. Step 2: Convert to fraction form
    660,154,072.20/989,601,252.30 = 245,519,867.40/x
  3. Step 3: Cross multiply
    660,154,072.20x = 989,601,252.30 × 245,519,867.40
  4. Step 4: Simplify right side
    660,154,072.20x = 242,966,768,243,569,952
  5. Step 5: Solve for x
    x = 242,966,768,243,569,952/660,154,072.20
  6. Step 6: Final answer
    x = 368,045,549.48

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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.