Home / 689,549,368.64-951,598,224.63-376,303,759.29

Finding the Fourth Proportional to 689,549,368.64, 951,598,224.63 and 376,303,759.29

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Solution

The fourth proportional to 689,549,368.64, 951,598,224.63 and 376,303,759.29 is: 519,310,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,549,368.64 : 951,598,224.63 = 376,303,759.29 : x
  2. Step 2: Convert to fraction form
    689,549,368.64/951,598,224.63 = 376,303,759.29/x
  3. Step 3: Cross multiply
    689,549,368.64x = 951,598,224.63 × 376,303,759.29
  4. Step 4: Simplify right side
    689,549,368.64x = 358,089,989,261,958,912
  5. Step 5: Solve for x
    x = 358,089,989,261,958,912/689,549,368.64
  6. Step 6: Final answer
    x = 519,310,154.65

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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.