Home / 651,925,012.70-977,887,519.05-215,293,087.10

Finding the Fourth Proportional to 651,925,012.70, 977,887,519.05 and 215,293,087.10

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Solution

The fourth proportional to 651,925,012.70, 977,887,519.05 and 215,293,087.10 is: 322,939,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,925,012.70 : 977,887,519.05 = 215,293,087.10 : x
  2. Step 2: Convert to fraction form
    651,925,012.70/977,887,519.05 = 215,293,087.10/x
  3. Step 3: Cross multiply
    651,925,012.70x = 977,887,519.05 × 215,293,087.10
  4. Step 4: Simplify right side
    651,925,012.70x = 210,532,422,812,834,528
  5. Step 5: Solve for x
    x = 210,532,422,812,834,528/651,925,012.70
  6. Step 6: Final answer
    x = 322,939,630.65

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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.