Home / 459,697,965.40-689,546,948.10-305,845,139.80

Finding the Fourth Proportional to 459,697,965.40, 689,546,948.10 and 305,845,139.80

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Solution

The fourth proportional to 459,697,965.40, 689,546,948.10 and 305,845,139.80 is: 458,767,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,697,965.40 : 689,546,948.10 = 305,845,139.80 : x
  2. Step 2: Convert to fraction form
    459,697,965.40/689,546,948.10 = 305,845,139.80/x
  3. Step 3: Cross multiply
    459,697,965.40x = 689,546,948.10 × 305,845,139.80
  4. Step 4: Simplify right side
    459,697,965.40x = 210,894,582,740,307,872
  5. Step 5: Solve for x
    x = 210,894,582,740,307,872/459,697,965.40
  6. Step 6: Final answer
    x = 458,767,709.70

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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.