Home / 811,999,332.27-1,120,559,907.85-440,721,440.19

Finding the Fourth Proportional to 811,999,332.27, 1,120,559,907.85 and 440,721,440.19

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Solution

The fourth proportional to 811,999,332.27, 1,120,559,907.85 and 440,721,440.19 is: 608,196,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,999,332.27 : 1,120,559,907.85 = 440,721,440.19 : x
  2. Step 2: Convert to fraction form
    811,999,332.27/1,120,559,907.85 = 440,721,440.19/x
  3. Step 3: Cross multiply
    811,999,332.27x = 1,120,559,907.85 × 440,721,440.19
  4. Step 4: Simplify right side
    811,999,332.27x = 493,854,776,406,825,664
  5. Step 5: Solve for x
    x = 493,854,776,406,825,664/811,999,332.27
  6. Step 6: Final answer
    x = 608,196,037.58

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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.