Home / 1,979,478,537.40-2,969,217,806.10-687,014,025.40

Finding the Fourth Proportional to 1,979,478,537.40, 2,969,217,806.10 and 687,014,025.40

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Solution

The fourth proportional to 1,979,478,537.40, 2,969,217,806.10 and 687,014,025.40 is: 1,030,521,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,478,537.40 : 2,969,217,806.10 = 687,014,025.40 : x
  2. Step 2: Convert to fraction form
    1,979,478,537.40/2,969,217,806.10 = 687,014,025.40/x
  3. Step 3: Cross multiply
    1,979,478,537.40x = 2,969,217,806.10 × 687,014,025.40
  4. Step 4: Simplify right side
    1,979,478,537.40x = 2,039,894,277,258,117,632
  5. Step 5: Solve for x
    x = 2,039,894,277,258,117,632/1,979,478,537.40
  6. Step 6: Final answer
    x = 1,030,521,038.10

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Double scale
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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.