Home / 870,681,242.07-1,306,583,739.09-317,937,391.38

Finding the Fourth Proportional to 870,681,242.07, 1,306,583,739.09 and 317,937,391.38

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Solution

The fourth proportional to 870,681,242.07, 1,306,583,739.09 and 317,937,391.38 is: 477,111,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,681,242.07 : 1,306,583,739.09 = 317,937,391.38 : x
  2. Step 2: Convert to fraction form
    870,681,242.07/1,306,583,739.09 = 317,937,391.38/x
  3. Step 3: Cross multiply
    870,681,242.07x = 1,306,583,739.09 × 317,937,391.38
  4. Step 4: Simplify right side
    870,681,242.07x = 415,411,825,625,801,088
  5. Step 5: Solve for x
    x = 415,411,825,625,801,088/870,681,242.07
  6. Step 6: Final answer
    x = 477,111,261.34

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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.