Home / 10,779,899,320.80-16,169,848,981.20-9,201,732,127.20

Finding the Fourth Proportional to 10,779,899,320.80, 16,169,848,981.20 and 9,201,732,127.20

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Solution

The fourth proportional to 10,779,899,320.80, 16,169,848,981.20 and 9,201,732,127.20 is: 13,802,598,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779,899,320.80 : 16,169,848,981.20 = 9,201,732,127.20 : x
  2. Step 2: Convert to fraction form
    10,779,899,320.80/16,169,848,981.20 = 9,201,732,127.20/x
  3. Step 3: Cross multiply
    10,779,899,320.80x = 16,169,848,981.20 × 9,201,732,127.20
  4. Step 4: Simplify right side
    10,779,899,320.80x = 148,790,618,862,280,245,248
  5. Step 5: Solve for x
    x = 148,790,618,862,280,245,248/10,779,899,320.80
  6. Step 6: Final answer
    x = 13,802,598,190.80

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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.