Home / 1,780,758,285.90-2,671,137,511.89-1,219,967,128.07

Finding the Fourth Proportional to 1,780,758,285.90, 2,671,137,511.89 and 1,219,967,128.07

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Solution

The fourth proportional to 1,780,758,285.90, 2,671,137,511.89 and 1,219,967,128.07 is: 1,829,950,748.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,758,285.90 : 2,671,137,511.89 = 1,219,967,128.07 : x
  2. Step 2: Convert to fraction form
    1,780,758,285.90/2,671,137,511.89 = 1,219,967,128.07/x
  3. Step 3: Cross multiply
    1,780,758,285.90x = 2,671,137,511.89 × 1,219,967,128.07
  4. Step 4: Simplify right side
    1,780,758,285.90x = 3,258,699,959,047,133,184
  5. Step 5: Solve for x
    x = 3,258,699,959,047,133,184/1,780,758,285.90
  6. Step 6: Final answer
    x = 1,829,950,748.99

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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.