Home / 7,139,190,043.92-9,841,698,802.98-4,989,121,368.60

Finding the Fourth Proportional to 7,139,190,043.92, 9,841,698,802.98 and 4,989,121,368.60

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Solution

The fourth proportional to 7,139,190,043.92, 9,841,698,802.98 and 4,989,121,368.60 is: 6,877,731,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,190,043.92 : 9,841,698,802.98 = 4,989,121,368.60 : x
  2. Step 2: Convert to fraction form
    7,139,190,043.92/9,841,698,802.98 = 4,989,121,368.60/x
  3. Step 3: Cross multiply
    7,139,190,043.92x = 9,841,698,802.98 × 4,989,121,368.60
  4. Step 4: Simplify right side
    7,139,190,043.92x = 49,101,429,801,272,557,568
  5. Step 5: Solve for x
    x = 49,101,429,801,272,557,568/7,139,190,043.92
  6. Step 6: Final answer
    x = 6,877,731,157.06

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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.