Home / 514,651,073.10-710,223,965.55-279,701,745.72

Finding the Fourth Proportional to 514,651,073.10, 710,223,965.55 and 279,701,745.72

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Solution

The fourth proportional to 514,651,073.10, 710,223,965.55 and 279,701,745.72 is: 385,991,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,651,073.10 : 710,223,965.55 = 279,701,745.72 : x
  2. Step 2: Convert to fraction form
    514,651,073.10/710,223,965.55 = 279,701,745.72/x
  3. Step 3: Cross multiply
    514,651,073.10x = 710,223,965.55 × 279,701,745.72
  4. Step 4: Simplify right side
    514,651,073.10x = 198,650,883,016,516,160
  5. Step 5: Solve for x
    x = 198,650,883,016,516,160/514,651,073.10
  6. Step 6: Final answer
    x = 385,991,389.89

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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.