Home / 517,779,397.64-714,535,541.42-279,624,559.15

Finding the Fourth Proportional to 517,779,397.64, 714,535,541.42 and 279,624,559.15

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Solution

The fourth proportional to 517,779,397.64, 714,535,541.42 and 279,624,559.15 is: 385,881,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,779,397.64 : 714,535,541.42 = 279,624,559.15 : x
  2. Step 2: Convert to fraction form
    517,779,397.64/714,535,541.42 = 279,624,559.15/x
  3. Step 3: Cross multiply
    517,779,397.64x = 714,535,541.42 × 279,624,559.15
  4. Step 4: Simplify right side
    517,779,397.64x = 199,801,685,763,389,568
  5. Step 5: Solve for x
    x = 199,801,685,763,389,568/517,779,397.64
  6. Step 6: Final answer
    x = 385,881,876.86

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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.