Home / 28,423,013,939.85-42,641,059,471.53-9,538,807,548.06

Finding the Fourth Proportional to 28,423,013,939.85, 42,641,059,471.53 and 9,538,807,548.06

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Solution

The fourth proportional to 28,423,013,939.85, 42,641,059,471.53 and 9,538,807,548.06 is: 14,310,405,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423,013,939.85 : 42,641,059,471.53 = 9,538,807,548.06 : x
  2. Step 2: Convert to fraction form
    28,423,013,939.85/42,641,059,471.53 = 9,538,807,548.06/x
  3. Step 3: Cross multiply
    28,423,013,939.85x = 42,641,059,471.53 × 9,538,807,548.06
  4. Step 4: Simplify right side
    28,423,013,939.85x = 406,744,859,944,305,688,576
  5. Step 5: Solve for x
    x = 406,744,859,944,305,688,576/28,423,013,939.85
  6. Step 6: Final answer
    x = 14,310,405,673.55

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1.5x scale

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.