Home / 912,070,386.72-1,258,623,413.72-494,373,703.96

Finding the Fourth Proportional to 912,070,386.72, 1,258,623,413.72 and 494,373,703.96

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Solution

The fourth proportional to 912,070,386.72, 1,258,623,413.72 and 494,373,703.96 is: 682,217,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,070,386.72 : 1,258,623,413.72 = 494,373,703.96 : x
  2. Step 2: Convert to fraction form
    912,070,386.72/1,258,623,413.72 = 494,373,703.96/x
  3. Step 3: Cross multiply
    912,070,386.72x = 1,258,623,413.72 × 494,373,703.96
  4. Step 4: Simplify right side
    912,070,386.72x = 622,230,318,931,535,872
  5. Step 5: Solve for x
    x = 622,230,318,931,535,872/912,070,386.72
  6. Step 6: Final answer
    x = 682,217,434.08

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Double scale
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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.