Home / 620,339,880.64-856,196,068.08-369,591,163.60

Finding the Fourth Proportional to 620,339,880.64, 856,196,068.08 and 369,591,163.60

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Solution

The fourth proportional to 620,339,880.64, 856,196,068.08 and 369,591,163.60 is: 510,111,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,339,880.64 : 856,196,068.08 = 369,591,163.60 : x
  2. Step 2: Convert to fraction form
    620,339,880.64/856,196,068.08 = 369,591,163.60/x
  3. Step 3: Cross multiply
    620,339,880.64x = 856,196,068.08 × 369,591,163.60
  4. Step 4: Simplify right side
    620,339,880.64x = 316,442,501,071,432,064
  5. Step 5: Solve for x
    x = 316,442,501,071,432,064/620,339,880.64
  6. Step 6: Final answer
    x = 510,111,490.41

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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.