Home / 454,480,006.40-681,720,009.60-315,407,801.60

Finding the Fourth Proportional to 454,480,006.40, 681,720,009.60 and 315,407,801.60

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Solution

The fourth proportional to 454,480,006.40, 681,720,009.60 and 315,407,801.60 is: 473,111,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,480,006.40 : 681,720,009.60 = 315,407,801.60 : x
  2. Step 2: Convert to fraction form
    454,480,006.40/681,720,009.60 = 315,407,801.60/x
  3. Step 3: Cross multiply
    454,480,006.40x = 681,720,009.60 × 315,407,801.60
  4. Step 4: Simplify right side
    454,480,006.40x = 215,019,809,534,666,912
  5. Step 5: Solve for x
    x = 215,019,809,534,666,912/454,480,006.40
  6. Step 6: Final answer
    x = 473,111,702.40

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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.