Home / 100,285,996,008.41-138,395,771,870.80-54,560,531,368.95

Finding the Fourth Proportional to 100,285,996,008.41, 138,395,771,870.80 and 54,560,531,368.95

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Solution

The fourth proportional to 100,285,996,008.41, 138,395,771,870.80 and 54,560,531,368.95 is: 75,294,130,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,285,996,008.41 : 138,395,771,870.80 = 54,560,531,368.95 : x
  2. Step 2: Convert to fraction form
    100,285,996,008.41/138,395,771,870.80 = 54,560,531,368.95/x
  3. Step 3: Cross multiply
    100,285,996,008.41x = 138,395,771,870.80 × 54,560,531,368.95
  4. Step 4: Simplify right side
    100,285,996,008.41x = 7,550,946,852,486,830,358,528
  5. Step 5: Solve for x
    x = 7,550,946,852,486,830,358,528/100,285,996,008.41
  6. Step 6: Final answer
    x = 75,294,130,317.59

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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.