Home / 1,570,218,719.49-2,166,804,472.91-865,331,320.32

Finding the Fourth Proportional to 1,570,218,719.49, 2,166,804,472.91 and 865,331,320.32

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Solution

The fourth proportional to 1,570,218,719.49, 2,166,804,472.91 and 865,331,320.32 is: 1,194,103,567.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,218,719.49 : 2,166,804,472.91 = 865,331,320.32 : x
  2. Step 2: Convert to fraction form
    1,570,218,719.49/2,166,804,472.91 = 865,331,320.32/x
  3. Step 3: Cross multiply
    1,570,218,719.49x = 2,166,804,472.91 × 865,331,320.32
  4. Step 4: Simplify right side
    1,570,218,719.49x = 1,875,003,775,414,165,504
  5. Step 5: Solve for x
    x = 1,875,003,775,414,165,504/1,570,218,719.49
  6. Step 6: Final answer
    x = 1,194,103,567.96

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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.