Home / 8,739,576,010.40-13,109,364,015.60-7,943,689,968.80

Finding the Fourth Proportional to 8,739,576,010.40, 13,109,364,015.60 and 7,943,689,968.80

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Solution

The fourth proportional to 8,739,576,010.40, 13,109,364,015.60 and 7,943,689,968.80 is: 11,915,534,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739,576,010.40 : 13,109,364,015.60 = 7,943,689,968.80 : x
  2. Step 2: Convert to fraction form
    8,739,576,010.40/13,109,364,015.60 = 7,943,689,968.80/x
  3. Step 3: Cross multiply
    8,739,576,010.40x = 13,109,364,015.60 × 7,943,689,968.80
  4. Step 4: Simplify right side
    8,739,576,010.40x = 104,136,723,428,069,408,768
  5. Step 5: Solve for x
    x = 104,136,723,428,069,408,768/8,739,576,010.40
  6. Step 6: Final answer
    x = 11,915,534,953.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.