Home / 1,411,319,529.78-1,947,622,565.76-784,774,505.58

Finding the Fourth Proportional to 1,411,319,529.78, 1,947,622,565.76 and 784,774,505.58

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Solution

The fourth proportional to 1,411,319,529.78, 1,947,622,565.76 and 784,774,505.58 is: 1,082,989,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,319,529.78 : 1,947,622,565.76 = 784,774,505.58 : x
  2. Step 2: Convert to fraction form
    1,411,319,529.78/1,947,622,565.76 = 784,774,505.58/x
  3. Step 3: Cross multiply
    1,411,319,529.78x = 1,947,622,565.76 × 784,774,505.58
  4. Step 4: Simplify right side
    1,411,319,529.78x = 1,528,444,536,100,755,200
  5. Step 5: Solve for x
    x = 1,528,444,536,100,755,200/1,411,319,529.78
  6. Step 6: Final answer
    x = 1,082,989,715.55

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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.