Home / 138,260,459,071.76-190,830,127,964.80-84,055,489,855.32

Finding the Fourth Proportional to 138,260,459,071.76, 190,830,127,964.80 and 84,055,489,855.32

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Solution

The fourth proportional to 138,260,459,071.76, 190,830,127,964.80 and 84,055,489,855.32 is: 116,015,236,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,260,459,071.76 : 190,830,127,964.80 = 84,055,489,855.32 : x
  2. Step 2: Convert to fraction form
    138,260,459,071.76/190,830,127,964.80 = 84,055,489,855.32/x
  3. Step 3: Cross multiply
    138,260,459,071.76x = 190,830,127,964.80 × 84,055,489,855.32
  4. Step 4: Simplify right side
    138,260,459,071.76x = 16,040,319,885,234,663,325,696
  5. Step 5: Solve for x
    x = 16,040,319,885,234,663,325,696/138,260,459,071.76
  6. Step 6: Final answer
    x = 116,015,236,698.36

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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.