Home / 689,549,376.51-951,598,235.52-376,303,767.17

Finding the Fourth Proportional to 689,549,376.51, 951,598,235.52 and 376,303,767.17

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Solution

The fourth proportional to 689,549,376.51, 951,598,235.52 and 376,303,767.17 is: 519,310,165.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,549,376.51 : 951,598,235.52 = 376,303,767.17 : x
  2. Step 2: Convert to fraction form
    689,549,376.51/951,598,235.52 = 376,303,767.17/x
  3. Step 3: Cross multiply
    689,549,376.51x = 951,598,235.52 × 376,303,767.17
  4. Step 4: Simplify right side
    689,549,376.51x = 358,090,000,853,742,912
  5. Step 5: Solve for x
    x = 358,090,000,853,742,912/689,549,376.51
  6. Step 6: Final answer
    x = 519,310,165.53

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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.