Home / 1,016,712,186.60-1,525,068,279.90-279,780,666.60

Finding the Fourth Proportional to 1,016,712,186.60, 1,525,068,279.90 and 279,780,666.60

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Solution

The fourth proportional to 1,016,712,186.60, 1,525,068,279.90 and 279,780,666.60 is: 419,670,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,712,186.60 : 1,525,068,279.90 = 279,780,666.60 : x
  2. Step 2: Convert to fraction form
    1,016,712,186.60/1,525,068,279.90 = 279,780,666.60/x
  3. Step 3: Cross multiply
    1,016,712,186.60x = 1,525,068,279.90 × 279,780,666.60
  4. Step 4: Simplify right side
    1,016,712,186.60x = 426,684,619,960,937,472
  5. Step 5: Solve for x
    x = 426,684,619,960,937,472/1,016,712,186.60
  6. Step 6: Final answer
    x = 419,670,999.90

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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.