Home / 7,139,190,042.92-9,841,698,801.60-4,989,121,367.60

Finding the Fourth Proportional to 7,139,190,042.92, 9,841,698,801.60 and 4,989,121,367.60

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Solution

The fourth proportional to 7,139,190,042.92, 9,841,698,801.60 and 4,989,121,367.60 is: 6,877,731,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,190,042.92 : 9,841,698,801.60 = 4,989,121,367.60 : x
  2. Step 2: Convert to fraction form
    7,139,190,042.92/9,841,698,801.60 = 4,989,121,367.60/x
  3. Step 3: Cross multiply
    7,139,190,042.92x = 9,841,698,801.60 × 4,989,121,367.60
  4. Step 4: Simplify right side
    7,139,190,042.92x = 49,101,429,784,545,878,016
  5. Step 5: Solve for x
    x = 49,101,429,784,545,878,016/7,139,190,042.92
  6. Step 6: Final answer
    x = 6,877,731,155.68

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Double scale
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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.