Home / 21,210,293,285.65-31,779,436,849.21-12,798,524,567.13

Finding the Fourth Proportional to 21,210,293,285.65, 31,779,436,849.21 and 12,798,524,567.13

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Solution

The fourth proportional to 21,210,293,285.65, 31,779,436,849.21 and 12,798,524,567.13 is: 19,176,062,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210,293,285.65 : 31,779,436,849.21 = 12,798,524,567.13 : x
  2. Step 2: Convert to fraction form
    21,210,293,285.65/31,779,436,849.21 = 12,798,524,567.13/x
  3. Step 3: Cross multiply
    21,210,293,285.65x = 31,779,436,849.21 × 12,798,524,567.13
  4. Step 4: Simplify right side
    21,210,293,285.65x = 406,729,903,244,170,559,488
  5. Step 5: Solve for x
    x = 406,729,903,244,170,559,488/21,210,293,285.65
  6. Step 6: Final answer
    x = 19,176,062,196.15

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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.