Home / 1,993,071,428.70-2,989,607,143.05-1,878,280,172.70

Finding the Fourth Proportional to 1,993,071,428.70, 2,989,607,143.05 and 1,878,280,172.70

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Solution

The fourth proportional to 1,993,071,428.70, 2,989,607,143.05 and 1,878,280,172.70 is: 2,817,420,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,071,428.70 : 2,989,607,143.05 = 1,878,280,172.70 : x
  2. Step 2: Convert to fraction form
    1,993,071,428.70/2,989,607,143.05 = 1,878,280,172.70/x
  3. Step 3: Cross multiply
    1,993,071,428.70x = 2,989,607,143.05 × 1,878,280,172.70
  4. Step 4: Simplify right side
    1,993,071,428.70x = 5,615,319,820,953,108,480
  5. Step 5: Solve for x
    x = 5,615,319,820,953,108,480/1,993,071,428.70
  6. Step 6: Final answer
    x = 2,817,420,259.05

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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.