Home / 315,557,590.70-473,336,378.76-85,526,670.80

Finding the Fourth Proportional to 315,557,590.70, 473,336,378.76 and 85,526,670.80

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Solution

The fourth proportional to 315,557,590.70, 473,336,378.76 and 85,526,670.80 is: 128,290,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,557,590.70 : 473,336,378.76 = 85,526,670.80 : x
  2. Step 2: Convert to fraction form
    315,557,590.70/473,336,378.76 = 85,526,670.80/x
  3. Step 3: Cross multiply
    315,557,590.70x = 473,336,378.76 × 85,526,670.80
  4. Step 4: Simplify right side
    315,557,590.70x = 40,482,884,643,870,632
  5. Step 5: Solve for x
    x = 40,482,884,643,870,632/315,557,590.70
  6. Step 6: Final answer
    x = 128,290,004.22

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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.