Home / 751,460,302.80-1,037,022,729.80-421,428,355.92

Finding the Fourth Proportional to 751,460,302.80, 1,037,022,729.80 and 421,428,355.92

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Solution

The fourth proportional to 751,460,302.80, 1,037,022,729.80 and 421,428,355.92 is: 581,575,343.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,460,302.80 : 1,037,022,729.80 = 421,428,355.92 : x
  2. Step 2: Convert to fraction form
    751,460,302.80/1,037,022,729.80 = 421,428,355.92/x
  3. Step 3: Cross multiply
    751,460,302.80x = 1,037,022,729.80 × 421,428,355.92
  4. Step 4: Simplify right side
    751,460,302.80x = 437,030,784,071,284,416
  5. Step 5: Solve for x
    x = 437,030,784,071,284,416/751,460,302.80
  6. Step 6: Final answer
    x = 581,575,343.96

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1.5x scale

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.