Home / 1,260,424,005.40-1,892,582,427.30-687,115,077.40

Finding the Fourth Proportional to 1,260,424,005.40, 1,892,582,427.30 and 687,115,077.40

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Solution

The fourth proportional to 1,260,424,005.40, 1,892,582,427.30 and 687,115,077.40 is: 1,031,733,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,424,005.40 : 1,892,582,427.30 = 687,115,077.40 : x
  2. Step 2: Convert to fraction form
    1,260,424,005.40/1,892,582,427.30 = 687,115,077.40/x
  3. Step 3: Cross multiply
    1,260,424,005.40x = 1,892,582,427.30 × 687,115,077.40
  4. Step 4: Simplify right side
    1,260,424,005.40x = 1,300,421,921,020,119,296
  5. Step 5: Solve for x
    x = 1,300,421,921,020,119,296/1,260,424,005.40
  6. Step 6: Final answer
    x = 1,031,733,698.70

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Double scale
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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.