Home / 811,999,336.14-1,120,559,913.20-440,721,444.06

Finding the Fourth Proportional to 811,999,336.14, 1,120,559,913.20 and 440,721,444.06

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Solution

The fourth proportional to 811,999,336.14, 1,120,559,913.20 and 440,721,444.06 is: 608,196,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,999,336.14 : 1,120,559,913.20 = 440,721,444.06 : x
  2. Step 2: Convert to fraction form
    811,999,336.14/1,120,559,913.20 = 440,721,444.06/x
  3. Step 3: Cross multiply
    811,999,336.14x = 1,120,559,913.20 × 440,721,444.06
  4. Step 4: Simplify right side
    811,999,336.14x = 493,854,783,099,048,640
  5. Step 5: Solve for x
    x = 493,854,783,099,048,640/811,999,336.14
  6. Step 6: Final answer
    x = 608,196,042.93

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1.5x scale

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.