Home / 672,605,029.10-1,008,907,543.65-309,099,385.10

Finding the Fourth Proportional to 672,605,029.10, 1,008,907,543.65 and 309,099,385.10

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Solution

The fourth proportional to 672,605,029.10, 1,008,907,543.65 and 309,099,385.10 is: 463,649,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,605,029.10 : 1,008,907,543.65 = 309,099,385.10 : x
  2. Step 2: Convert to fraction form
    672,605,029.10/1,008,907,543.65 = 309,099,385.10/x
  3. Step 3: Cross multiply
    672,605,029.10x = 1,008,907,543.65 × 309,099,385.10
  4. Step 4: Simplify right side
    672,605,029.10x = 311,852,701,364,966,400
  5. Step 5: Solve for x
    x = 311,852,701,364,966,400/672,605,029.10
  6. Step 6: Final answer
    x = 463,649,077.65

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Double scale
Find fourth proportional to 672,605,030.10, 1,008,907,545.15 and 309,099,386.10
Similar ratio
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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.