Home / 141,559,038.72-195,339,013.56-78,830,396.64

Finding the Fourth Proportional to 141,559,038.72, 195,339,013.56 and 78,830,396.64

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Solution

The fourth proportional to 141,559,038.72, 195,339,013.56 and 78,830,396.64 is: 108,779,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,559,038.72 : 195,339,013.56 = 78,830,396.64 : x
  2. Step 2: Convert to fraction form
    141,559,038.72/195,339,013.56 = 78,830,396.64/x
  3. Step 3: Cross multiply
    141,559,038.72x = 195,339,013.56 × 78,830,396.64
  4. Step 4: Simplify right side
    141,559,038.72x = 15,398,651,918,201,138
  5. Step 5: Solve for x
    x = 15,398,651,918,201,138/141,559,038.72
  6. Step 6: Final answer
    x = 108,779,008.80

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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.