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Finding the Fourth Proportional to 290,304,047.80, 435,456,071.70 and 167,860,041.40

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Solution

The fourth proportional to 290,304,047.80, 435,456,071.70 and 167,860,041.40 is: 251,790,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,304,047.80 : 435,456,071.70 = 167,860,041.40 : x
  2. Step 2: Convert to fraction form
    290,304,047.80/435,456,071.70 = 167,860,041.40/x
  3. Step 3: Cross multiply
    290,304,047.80x = 435,456,071.70 × 167,860,041.40
  4. Step 4: Simplify right side
    290,304,047.80x = 73,095,674,223,443,376
  5. Step 5: Solve for x
    x = 73,095,674,223,443,376/290,304,047.80
  6. Step 6: Final answer
    x = 251,790,062.10

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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.