Home / 20,631,032,014.56-28,470,920,595.68-11,720,849,693.28

Finding the Fourth Proportional to 20,631,032,014.56, 28,470,920,595.68 and 11,720,849,693.28

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Solution

The fourth proportional to 20,631,032,014.56, 28,470,920,595.68 and 11,720,849,693.28 is: 16,174,827,352.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,032,014.56 : 28,470,920,595.68 = 11,720,849,693.28 : x
  2. Step 2: Convert to fraction form
    20,631,032,014.56/28,470,920,595.68 = 11,720,849,693.28/x
  3. Step 3: Cross multiply
    20,631,032,014.56x = 28,470,920,595.68 × 11,720,849,693.28
  4. Step 4: Simplify right side
    20,631,032,014.56x = 333,703,380,931,275,194,368
  5. Step 5: Solve for x
    x = 333,703,380,931,275,194,368/20,631,032,014.56
  6. Step 6: Final answer
    x = 16,174,827,352.11

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1.5x scale

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.