Home / 19,386,357,158.57-29,019,893,329.42-12,648,991,930.47

Finding the Fourth Proportional to 19,386,357,158.57, 29,019,893,329.42 and 12,648,991,930.47

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Solution

The fourth proportional to 19,386,357,158.57, 29,019,893,329.42 and 12,648,991,930.47 is: 18,934,573,088.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386,357,158.57 : 29,019,893,329.42 = 12,648,991,930.47 : x
  2. Step 2: Convert to fraction form
    19,386,357,158.57/29,019,893,329.42 = 12,648,991,930.47/x
  3. Step 3: Cross multiply
    19,386,357,158.57x = 29,019,893,329.42 × 12,648,991,930.47
  4. Step 4: Simplify right side
    19,386,357,158.57x = 367,072,396,546,895,773,696
  5. Step 5: Solve for x
    x = 367,072,396,546,895,773,696/19,386,357,158.57
  6. Step 6: Final answer
    x = 18,934,573,088.93

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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.