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Finding the Fourth Proportional to 880,784,665.02, 1,214,354,506.57 and 721,427,726.32

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Solution

The fourth proportional to 880,784,665.02, 1,214,354,506.57 and 721,427,726.32 is: 994,646,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,784,665.02 : 1,214,354,506.57 = 721,427,726.32 : x
  2. Step 2: Convert to fraction form
    880,784,665.02/1,214,354,506.57 = 721,427,726.32/x
  3. Step 3: Cross multiply
    880,784,665.02x = 1,214,354,506.57 × 721,427,726.32
  4. Step 4: Simplify right side
    880,784,665.02x = 876,069,010,616,401,280
  5. Step 5: Solve for x
    x = 876,069,010,616,401,280/880,784,665.02
  6. Step 6: Final answer
    x = 994,646,075.72

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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.