Home / 78,299,136,323.20-117,448,704,484.80-69,737,722,998.40

Finding the Fourth Proportional to 78,299,136,323.20, 117,448,704,484.80 and 69,737,722,998.40

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Solution

The fourth proportional to 78,299,136,323.20, 117,448,704,484.80 and 69,737,722,998.40 is: 104,606,584,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,299,136,323.20 : 117,448,704,484.80 = 69,737,722,998.40 : x
  2. Step 2: Convert to fraction form
    78,299,136,323.20/117,448,704,484.80 = 69,737,722,998.40/x
  3. Step 3: Cross multiply
    78,299,136,323.20x = 117,448,704,484.80 × 69,737,722,998.40
  4. Step 4: Simplify right side
    78,299,136,323.20x = 8,190,605,219,881,922,068,480
  5. Step 5: Solve for x
    x = 8,190,605,219,881,922,068,480/78,299,136,323.20
  6. Step 6: Final answer
    x = 104,606,584,497.60

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1.5x scale

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.