Home / 143,545,031.70-215,317,547.55-66,875,810.10

Finding the Fourth Proportional to 143,545,031.70, 215,317,547.55 and 66,875,810.10

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Solution

The fourth proportional to 143,545,031.70, 215,317,547.55 and 66,875,810.10 is: 100,313,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,545,031.70 : 215,317,547.55 = 66,875,810.10 : x
  2. Step 2: Convert to fraction form
    143,545,031.70/215,317,547.55 = 66,875,810.10/x
  3. Step 3: Cross multiply
    143,545,031.70x = 215,317,547.55 × 66,875,810.10
  4. Step 4: Simplify right side
    143,545,031.70x = 14,399,535,421,151,522
  5. Step 5: Solve for x
    x = 14,399,535,421,151,522/143,545,031.70
  6. Step 6: Final answer
    x = 100,313,715.15

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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.