Home / 434,485,115.80-651,727,673.70-143,397,165.40

Finding the Fourth Proportional to 434,485,115.80, 651,727,673.70 and 143,397,165.40

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Solution

The fourth proportional to 434,485,115.80, 651,727,673.70 and 143,397,165.40 is: 215,095,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,485,115.80 : 651,727,673.70 = 143,397,165.40 : x
  2. Step 2: Convert to fraction form
    434,485,115.80/651,727,673.70 = 143,397,165.40/x
  3. Step 3: Cross multiply
    434,485,115.80x = 651,727,673.70 × 143,397,165.40
  4. Step 4: Simplify right side
    434,485,115.80x = 93,455,901,021,316,144
  5. Step 5: Solve for x
    x = 93,455,901,021,316,144/434,485,115.80
  6. Step 6: Final answer
    x = 215,095,748.10

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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.