Home / 130,478,999,721.48-180,076,694,818.61-79,036,050,152.38

Finding the Fourth Proportional to 130,478,999,721.48, 180,076,694,818.61 and 79,036,050,152.38

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Solution

The fourth proportional to 130,478,999,721.48, 180,076,694,818.61 and 79,036,050,152.38 is: 109,079,244,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,478,999,721.48 : 180,076,694,818.61 = 79,036,050,152.38 : x
  2. Step 2: Convert to fraction form
    130,478,999,721.48/180,076,694,818.61 = 79,036,050,152.38/x
  3. Step 3: Cross multiply
    130,478,999,721.48x = 180,076,694,818.61 × 79,036,050,152.38
  4. Step 4: Simplify right side
    130,478,999,721.48x = 14,232,550,682,958,487,355,392
  5. Step 5: Solve for x
    x = 14,232,550,682,958,487,355,392/130,478,999,721.48
  6. Step 6: Final answer
    x = 109,079,244,271.79

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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.