Home / 851,810,980.99-1,175,510,575.20-480,531,864.19

Finding the Fourth Proportional to 851,810,980.99, 1,175,510,575.20 and 480,531,864.19

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Solution

The fourth proportional to 851,810,980.99, 1,175,510,575.20 and 480,531,864.19 is: 663,140,415.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,810,980.99 : 1,175,510,575.20 = 480,531,864.19 : x
  2. Step 2: Convert to fraction form
    851,810,980.99/1,175,510,575.20 = 480,531,864.19/x
  3. Step 3: Cross multiply
    851,810,980.99x = 1,175,510,575.20 × 480,531,864.19
  4. Step 4: Simplify right side
    851,810,980.99x = 564,870,288,075,915,200
  5. Step 5: Solve for x
    x = 564,870,288,075,915,200/851,810,980.99
  6. Step 6: Final answer
    x = 663,140,415.75

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.