Home / 8,536,960,012.40-12,805,440,018.60-7,085,771,788.40

Finding the Fourth Proportional to 8,536,960,012.40, 12,805,440,018.60 and 7,085,771,788.40

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Solution

The fourth proportional to 8,536,960,012.40, 12,805,440,018.60 and 7,085,771,788.40 is: 10,628,657,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536,960,012.40 : 12,805,440,018.60 = 7,085,771,788.40 : x
  2. Step 2: Convert to fraction form
    8,536,960,012.40/12,805,440,018.60 = 7,085,771,788.40/x
  3. Step 3: Cross multiply
    8,536,960,012.40x = 12,805,440,018.60 × 7,085,771,788.40
  4. Step 4: Simplify right side
    8,536,960,012.40x = 90,736,425,621,844,246,528
  5. Step 5: Solve for x
    x = 90,736,425,621,844,246,528/8,536,960,012.40
  6. Step 6: Final answer
    x = 10,628,657,682.60

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Double scale
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Similar ratio
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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.