Home / 971,405,390.72-1,457,210,146.08-316,407,463.76

Finding the Fourth Proportional to 971,405,390.72, 1,457,210,146.08 and 316,407,463.76

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Solution

The fourth proportional to 971,405,390.72, 1,457,210,146.08 and 316,407,463.76 is: 474,644,438.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,405,390.72 : 1,457,210,146.08 = 316,407,463.76 : x
  2. Step 2: Convert to fraction form
    971,405,390.72/1,457,210,146.08 = 316,407,463.76/x
  3. Step 3: Cross multiply
    971,405,390.72x = 1,457,210,146.08 × 316,407,463.76
  4. Step 4: Simplify right side
    971,405,390.72x = 461,072,166,486,511,872
  5. Step 5: Solve for x
    x = 461,072,166,486,511,872/971,405,390.72
  6. Step 6: Final answer
    x = 474,644,438.76

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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.