Home / 1,571,359,915.61-2,168,529,032.96-856,934,449.01

Finding the Fourth Proportional to 1,571,359,915.61, 2,168,529,032.96 and 856,934,449.01

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Solution

The fourth proportional to 1,571,359,915.61, 2,168,529,032.96 and 856,934,449.01 is: 1,182,598,088.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571,359,915.61 : 2,168,529,032.96 = 856,934,449.01 : x
  2. Step 2: Convert to fraction form
    1,571,359,915.61/2,168,529,032.96 = 856,934,449.01/x
  3. Step 3: Cross multiply
    1,571,359,915.61x = 2,168,529,032.96 × 856,934,449.01
  4. Step 4: Simplify right side
    1,571,359,915.61x = 1,858,287,232,021,765,632
  5. Step 5: Solve for x
    x = 1,858,287,232,021,765,632/1,571,359,915.61
  6. Step 6: Final answer
    x = 1,182,598,088.17

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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.