Home / 1,813,431,031.40-2,720,146,547.10-664,424,388.20

Finding the Fourth Proportional to 1,813,431,031.40, 2,720,146,547.10 and 664,424,388.20

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Solution

The fourth proportional to 1,813,431,031.40, 2,720,146,547.10 and 664,424,388.20 is: 996,636,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813,431,031.40 : 2,720,146,547.10 = 664,424,388.20 : x
  2. Step 2: Convert to fraction form
    1,813,431,031.40/2,720,146,547.10 = 664,424,388.20/x
  3. Step 3: Cross multiply
    1,813,431,031.40x = 2,720,146,547.10 × 664,424,388.20
  4. Step 4: Simplify right side
    1,813,431,031.40x = 1,807,331,705,371,260,160
  5. Step 5: Solve for x
    x = 1,807,331,705,371,260,160/1,813,431,031.40
  6. Step 6: Final answer
    x = 996,636,582.30

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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.