Home / 860,051,868.03-1,186,972,339.12-488,829,700.71

Finding the Fourth Proportional to 860,051,868.03, 1,186,972,339.12 and 488,829,700.71

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Solution

The fourth proportional to 860,051,868.03, 1,186,972,339.12 and 488,829,700.71 is: 674,642,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,051,868.03 : 1,186,972,339.12 = 488,829,700.71 : x
  2. Step 2: Convert to fraction form
    860,051,868.03/1,186,972,339.12 = 488,829,700.71/x
  3. Step 3: Cross multiply
    860,051,868.03x = 1,186,972,339.12 × 488,829,700.71
  4. Step 4: Simplify right side
    860,051,868.03x = 580,227,333,280,634,112
  5. Step 5: Solve for x
    x = 580,227,333,280,634,112/860,051,868.03
  6. Step 6: Final answer
    x = 674,642,256.88

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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.