Home / 689,535,534.15-951,579,225.32-376,289,938.57

Finding the Fourth Proportional to 689,535,534.15, 951,579,225.32 and 376,289,938.57

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Solution

The fourth proportional to 689,535,534.15, 951,579,225.32 and 376,289,938.57 is: 519,291,132.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,535,534.15 : 951,579,225.32 = 376,289,938.57 : x
  2. Step 2: Convert to fraction form
    689,535,534.15/951,579,225.32 = 376,289,938.57/x
  3. Step 3: Cross multiply
    689,535,534.15x = 951,579,225.32 × 376,289,938.57
  4. Step 4: Simplify right side
    689,535,534.15x = 358,069,688,242,529,920
  5. Step 5: Solve for x
    x = 358,069,688,242,529,920/689,535,534.15
  6. Step 6: Final answer
    x = 519,291,132.23

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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.