Home / 889,410,275.28-1,226,670,506.76-781,889,702.64

Finding the Fourth Proportional to 889,410,275.28, 1,226,670,506.76 and 781,889,702.64

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Solution

The fourth proportional to 889,410,275.28, 1,226,670,506.76 and 781,889,702.64 is: 1,078,378,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,410,275.28 : 1,226,670,506.76 = 781,889,702.64 : x
  2. Step 2: Convert to fraction form
    889,410,275.28/1,226,670,506.76 = 781,889,702.64/x
  3. Step 3: Cross multiply
    889,410,275.28x = 1,226,670,506.76 × 781,889,702.64
  4. Step 4: Simplify right side
    889,410,275.28x = 959,121,037,767,834,496
  5. Step 5: Solve for x
    x = 959,121,037,767,834,496/889,410,275.28
  6. Step 6: Final answer
    x = 1,078,378,634.05

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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.