Home / 1,349,211,266.92-1,861,916,548.12-784,831,568.32

Finding the Fourth Proportional to 1,349,211,266.92, 1,861,916,548.12 and 784,831,568.32

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Solution

The fourth proportional to 1,349,211,266.92, 1,861,916,548.12 and 784,831,568.32 is: 1,083,070,472.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,211,266.92 : 1,861,916,548.12 = 784,831,568.32 : x
  2. Step 2: Convert to fraction form
    1,349,211,266.92/1,861,916,548.12 = 784,831,568.32/x
  3. Step 3: Cross multiply
    1,349,211,266.92x = 1,861,916,548.12 × 784,831,568.32
  4. Step 4: Simplify right side
    1,349,211,266.92x = 1,461,290,884,541,980,416
  5. Step 5: Solve for x
    x = 1,461,290,884,541,980,416/1,349,211,266.92
  6. Step 6: Final answer
    x = 1,083,070,472.63

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Double scale
Find fourth proportional to 1,349,211,267.92, 1,861,916,549.50 and 784,831,569.32
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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.