Home / 1,016,712,081.60-1,525,068,122.40-279,780,561.60

Finding the Fourth Proportional to 1,016,712,081.60, 1,525,068,122.40 and 279,780,561.60

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Solution

The fourth proportional to 1,016,712,081.60, 1,525,068,122.40 and 279,780,561.60 is: 419,670,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,712,081.60 : 1,525,068,122.40 = 279,780,561.60 : x
  2. Step 2: Convert to fraction form
    1,016,712,081.60/1,525,068,122.40 = 279,780,561.60/x
  3. Step 3: Cross multiply
    1,016,712,081.60x = 1,525,068,122.40 × 279,780,561.60
  4. Step 4: Simplify right side
    1,016,712,081.60x = 426,684,415,763,329,600
  5. Step 5: Solve for x
    x = 426,684,415,763,329,600/1,016,712,081.60
  6. Step 6: Final answer
    x = 419,670,842.40

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Double scale
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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.