Home / 384,143,688.72-529,897,008.60-231,273,779.40

Finding the Fourth Proportional to 384,143,688.72, 529,897,008.60 and 231,273,779.40

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Solution

The fourth proportional to 384,143,688.72, 529,897,008.60 and 231,273,779.40 is: 319,024,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,143,688.72 : 529,897,008.60 = 231,273,779.40 : x
  2. Step 2: Convert to fraction form
    384,143,688.72/529,897,008.60 = 231,273,779.40/x
  3. Step 3: Cross multiply
    384,143,688.72x = 529,897,008.60 × 231,273,779.40
  4. Step 4: Simplify right side
    384,143,688.72x = 122,551,283,871,676,304
  5. Step 5: Solve for x
    x = 122,551,283,871,676,304/384,143,688.72
  6. Step 6: Final answer
    x = 319,024,592.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.