Home / 1,147,397,116.15-1,721,095,674.23-371,121,247.45

Finding the Fourth Proportional to 1,147,397,116.15, 1,721,095,674.23 and 371,121,247.45

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Solution

The fourth proportional to 1,147,397,116.15, 1,721,095,674.23 and 371,121,247.45 is: 556,681,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,397,116.15 : 1,721,095,674.23 = 371,121,247.45 : x
  2. Step 2: Convert to fraction form
    1,147,397,116.15/1,721,095,674.23 = 371,121,247.45/x
  3. Step 3: Cross multiply
    1,147,397,116.15x = 1,721,095,674.23 × 371,121,247.45
  4. Step 4: Simplify right side
    1,147,397,116.15x = 638,735,173,601,036,416
  5. Step 5: Solve for x
    x = 638,735,173,601,036,416/1,147,397,116.15
  6. Step 6: Final answer
    x = 556,681,871.18

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Double scale
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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.