Home / 1,088,971,939.60-1,634,095,638.60-398,948,945.20

Finding the Fourth Proportional to 1,088,971,939.60, 1,634,095,638.60 and 398,948,945.20

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Solution

The fourth proportional to 1,088,971,939.60, 1,634,095,638.60 and 398,948,945.20 is: 598,657,052.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,971,939.60 : 1,634,095,638.60 = 398,948,945.20 : x
  2. Step 2: Convert to fraction form
    1,088,971,939.60/1,634,095,638.60 = 398,948,945.20/x
  3. Step 3: Cross multiply
    1,088,971,939.60x = 1,634,095,638.60 × 398,948,945.20
  4. Step 4: Simplify right side
    1,088,971,939.60x = 651,920,731,375,390,336
  5. Step 5: Solve for x
    x = 651,920,731,375,390,336/1,088,971,939.60
  6. Step 6: Final answer
    x = 598,657,052.28

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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.