Home / 866,224,837.80-1,299,337,256.70-429,592,912.20

Finding the Fourth Proportional to 866,224,837.80, 1,299,337,256.70 and 429,592,912.20

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Solution

The fourth proportional to 866,224,837.80, 1,299,337,256.70 and 429,592,912.20 is: 644,389,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,224,837.80 : 1,299,337,256.70 = 429,592,912.20 : x
  2. Step 2: Convert to fraction form
    866,224,837.80/1,299,337,256.70 = 429,592,912.20/x
  3. Step 3: Cross multiply
    866,224,837.80x = 1,299,337,256.70 × 429,592,912.20
  4. Step 4: Simplify right side
    866,224,837.80x = 558,186,076,035,711,936
  5. Step 5: Solve for x
    x = 558,186,076,035,711,936/866,224,837.80
  6. Step 6: Final answer
    x = 644,389,368.30

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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.