Home / 730,374,103.20-1,007,328,558.88-642,079,314.40

Finding the Fourth Proportional to 730,374,103.20, 1,007,328,558.88 and 642,079,314.40

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Solution

The fourth proportional to 730,374,103.20, 1,007,328,558.88 and 642,079,314.40 is: 885,552,797.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,374,103.20 : 1,007,328,558.88 = 642,079,314.40 : x
  2. Step 2: Convert to fraction form
    730,374,103.20/1,007,328,558.88 = 642,079,314.40/x
  3. Step 3: Cross multiply
    730,374,103.20x = 1,007,328,558.88 × 642,079,314.40
  4. Step 4: Simplify right side
    730,374,103.20x = 646,784,830,461,210,368
  5. Step 5: Solve for x
    x = 646,784,830,461,210,368/730,374,103.20
  6. Step 6: Final answer
    x = 885,552,797.71

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1.5x scale

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.