Home / 143,547,015.60-215,178,805.80-70,704,169.20

Finding the Fourth Proportional to 143,547,015.60, 215,178,805.80 and 70,704,169.20

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Solution

The fourth proportional to 143,547,015.60, 215,178,805.80 and 70,704,169.20 is: 105,986,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,547,015.60 : 215,178,805.80 = 70,704,169.20 : x
  2. Step 2: Convert to fraction form
    143,547,015.60/215,178,805.80 = 70,704,169.20/x
  3. Step 3: Cross multiply
    143,547,015.60x = 215,178,805.80 × 70,704,169.20
  4. Step 4: Simplify right side
    143,547,015.60x = 15,214,038,693,537,142
  5. Step 5: Solve for x
    x = 15,214,038,693,537,142/143,547,015.60
  6. Step 6: Final answer
    x = 105,986,450.71

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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.