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Finding the Fourth Proportional to 637,442,798.15, 879,672,883.37 and 369,570,688.67

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Solution

The fourth proportional to 637,442,798.15, 879,672,883.37 and 369,570,688.67 is: 510,008,606.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,442,798.15 : 879,672,883.37 = 369,570,688.67 : x
  2. Step 2: Convert to fraction form
    637,442,798.15/879,672,883.37 = 369,570,688.67/x
  3. Step 3: Cross multiply
    637,442,798.15x = 879,672,883.37 × 369,570,688.67
  4. Step 4: Simplify right side
    637,442,798.15x = 325,101,313,305,129,280
  5. Step 5: Solve for x
    x = 325,101,313,305,129,280/637,442,798.15
  6. Step 6: Final answer
    x = 510,008,606.66

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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.