Home / 860,051,866.28-1,186,972,336.70-488,829,698.96

Finding the Fourth Proportional to 860,051,866.28, 1,186,972,336.70 and 488,829,698.96

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Solution

The fourth proportional to 860,051,866.28, 1,186,972,336.70 and 488,829,698.96 is: 674,642,254.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,051,866.28 : 1,186,972,336.70 = 488,829,698.96 : x
  2. Step 2: Convert to fraction form
    860,051,866.28/1,186,972,336.70 = 488,829,698.96/x
  3. Step 3: Cross multiply
    860,051,866.28x = 1,186,972,336.70 × 488,829,698.96
  4. Step 4: Simplify right side
    860,051,866.28x = 580,227,330,022,908,800
  5. Step 5: Solve for x
    x = 580,227,330,022,908,800/860,051,866.28
  6. Step 6: Final answer
    x = 674,642,254.46

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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.