Home / 1,114,497,900.34-1,538,008,091.87-612,715,221.20

Finding the Fourth Proportional to 1,114,497,900.34, 1,538,008,091.87 and 612,715,221.20

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Solution

The fourth proportional to 1,114,497,900.34, 1,538,008,091.87 and 612,715,221.20 is: 845,547,549.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,497,900.34 : 1,538,008,091.87 = 612,715,221.20 : x
  2. Step 2: Convert to fraction form
    1,114,497,900.34/1,538,008,091.87 = 612,715,221.20/x
  3. Step 3: Cross multiply
    1,114,497,900.34x = 1,538,008,091.87 × 612,715,221.20
  4. Step 4: Simplify right side
    1,114,497,900.34x = 942,360,968,213,177,984
  5. Step 5: Solve for x
    x = 942,360,968,213,177,984/1,114,497,900.34
  6. Step 6: Final answer
    x = 845,547,549.19

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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.