Home / 865,512,018,485.44-1,298,467,480,538.90-299,549,711,798.80

Finding the Fourth Proportional to 865,512,018,485.44, 1,298,467,480,538.90 and 299,549,711,798.80

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Solution

The fourth proportional to 865,512,018,485.44, 1,298,467,480,538.90 and 299,549,711,798.80 is: 449,393,597,394.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,512,018,485.44 : 1,298,467,480,538.90 = 299,549,711,798.80 : x
  2. Step 2: Convert to fraction form
    865,512,018,485.44/1,298,467,480,538.90 = 299,549,711,798.80/x
  3. Step 3: Cross multiply
    865,512,018,485.44x = 1,298,467,480,538.90 × 299,549,711,798.80
  4. Step 4: Simplify right side
    865,512,018,485.44x = 388,955,559,575,541,421,965,312
  5. Step 5: Solve for x
    x = 388,955,559,575,541,421,965,312/865,512,018,485.44
  6. Step 6: Final answer
    x = 449,393,597,394.73

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Double scale
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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.