Home / 851,774,911.60-1,277,662,367.40-545,664,895.60

Finding the Fourth Proportional to 851,774,911.60, 1,277,662,367.40 and 545,664,895.60

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Solution

The fourth proportional to 851,774,911.60, 1,277,662,367.40 and 545,664,895.60 is: 818,497,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,774,911.60 : 1,277,662,367.40 = 545,664,895.60 : x
  2. Step 2: Convert to fraction form
    851,774,911.60/1,277,662,367.40 = 545,664,895.60/x
  3. Step 3: Cross multiply
    851,774,911.60x = 1,277,662,367.40 × 545,664,895.60
  4. Step 4: Simplify right side
    851,774,911.60x = 697,175,502,319,369,984
  5. Step 5: Solve for x
    x = 697,175,502,319,369,984/851,774,911.60
  6. Step 6: Final answer
    x = 818,497,343.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.