Home / 15,327,574,501.26-21,152,013,142.95-8,553,321,815.94

Finding the Fourth Proportional to 15,327,574,501.26, 21,152,013,142.95 and 8,553,321,815.94

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Solution

The fourth proportional to 15,327,574,501.26, 21,152,013,142.95 and 8,553,321,815.94 is: 11,803,561,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327,574,501.26 : 21,152,013,142.95 = 8,553,321,815.94 : x
  2. Step 2: Convert to fraction form
    15,327,574,501.26/21,152,013,142.95 = 8,553,321,815.94/x
  3. Step 3: Cross multiply
    15,327,574,501.26x = 21,152,013,142.95 × 8,553,321,815.94
  4. Step 4: Simplify right side
    15,327,574,501.26x = 180,919,975,466,643,849,216
  5. Step 5: Solve for x
    x = 180,919,975,466,643,849,216/15,327,574,501.26
  6. Step 6: Final answer
    x = 11,803,561,969.43

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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.