Home / 423,151,561.26-634,437,574.11-215,487,994.32

Finding the Fourth Proportional to 423,151,561.26, 634,437,574.11 and 215,487,994.32

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Solution

The fourth proportional to 423,151,561.26, 634,437,574.11 and 215,487,994.32 is: 323,084,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,151,561.26 : 634,437,574.11 = 215,487,994.32 : x
  2. Step 2: Convert to fraction form
    423,151,561.26/634,437,574.11 = 215,487,994.32/x
  3. Step 3: Cross multiply
    423,151,561.26x = 634,437,574.11 × 215,487,994.32
  4. Step 4: Simplify right side
    423,151,561.26x = 136,713,680,366,210,256
  5. Step 5: Solve for x
    x = 136,713,680,366,210,256/423,151,561.26
  6. Step 6: Final answer
    x = 323,084,428.57

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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.