Home / 689,549,358.89-951,598,211.18-376,303,749.54

Finding the Fourth Proportional to 689,549,358.89, 951,598,211.18 and 376,303,749.54

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Solution

The fourth proportional to 689,549,358.89, 951,598,211.18 and 376,303,749.54 is: 519,310,141.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,549,358.89 : 951,598,211.18 = 376,303,749.54 : x
  2. Step 2: Convert to fraction form
    689,549,358.89/951,598,211.18 = 376,303,749.54/x
  3. Step 3: Cross multiply
    689,549,358.89x = 951,598,211.18 × 376,303,749.54
  4. Step 4: Simplify right side
    689,549,358.89x = 358,089,974,920,709,248
  5. Step 5: Solve for x
    x = 358,089,974,920,709,248/689,549,358.89
  6. Step 6: Final answer
    x = 519,310,141.19

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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.