Home / 1,320,099,480,923.90-1,980,149,221,385.90-472,113,514,600.65

Finding the Fourth Proportional to 1,320,099,480,923.90, 1,980,149,221,385.90 and 472,113,514,600.65

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Solution

The fourth proportional to 1,320,099,480,923.90, 1,980,149,221,385.90 and 472,113,514,600.65 is: 708,170,271,900.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,099,480,923.90 : 1,980,149,221,385.90 = 472,113,514,600.65 : x
  2. Step 2: Convert to fraction form
    1,320,099,480,923.90/1,980,149,221,385.90 = 472,113,514,600.65/x
  3. Step 3: Cross multiply
    1,320,099,480,923.90x = 1,980,149,221,385.90 × 472,113,514,600.65
  4. Step 4: Simplify right side
    1,320,099,480,923.90x = 934,855,208,342,237,824,942,080
  5. Step 5: Solve for x
    x = 934,855,208,342,237,824,942,080/1,320,099,480,923.90
  6. Step 6: Final answer
    x = 708,170,271,900.99

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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.