Home / 1,979,478,539.40-2,969,217,809.10-687,014,027.40

Finding the Fourth Proportional to 1,979,478,539.40, 2,969,217,809.10 and 687,014,027.40

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Solution

The fourth proportional to 1,979,478,539.40, 2,969,217,809.10 and 687,014,027.40 is: 1,030,521,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,478,539.40 : 2,969,217,809.10 = 687,014,027.40 : x
  2. Step 2: Convert to fraction form
    1,979,478,539.40/2,969,217,809.10 = 687,014,027.40/x
  3. Step 3: Cross multiply
    1,979,478,539.40x = 2,969,217,809.10 × 687,014,027.40
  4. Step 4: Simplify right side
    1,979,478,539.40x = 2,039,894,285,257,595,136
  5. Step 5: Solve for x
    x = 2,039,894,285,257,595,136/1,979,478,539.40
  6. Step 6: Final answer
    x = 1,030,521,041.10

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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.