Home / 717,417,661.60-1,076,126,492.40-543,955,319.20

Finding the Fourth Proportional to 717,417,661.60, 1,076,126,492.40 and 543,955,319.20

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Solution

The fourth proportional to 717,417,661.60, 1,076,126,492.40 and 543,955,319.20 is: 815,932,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,417,661.60 : 1,076,126,492.40 = 543,955,319.20 : x
  2. Step 2: Convert to fraction form
    717,417,661.60/1,076,126,492.40 = 543,955,319.20/x
  3. Step 3: Cross multiply
    717,417,661.60x = 1,076,126,492.40 × 543,955,319.20
  4. Step 4: Simplify right side
    717,417,661.60x = 585,364,729,673,018,496
  5. Step 5: Solve for x
    x = 585,364,729,673,018,496/717,417,661.60
  6. Step 6: Final answer
    x = 815,932,978.80

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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.