Home / 860,789,068.70-1,289,270,415.45-745,997,812.70

Finding the Fourth Proportional to 860,789,068.70, 1,289,270,415.45 and 745,997,812.70

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Solution

The fourth proportional to 860,789,068.70, 1,289,270,415.45 and 745,997,812.70 is: 1,117,338,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,789,068.70 : 1,289,270,415.45 = 745,997,812.70 : x
  2. Step 2: Convert to fraction form
    860,789,068.70/1,289,270,415.45 = 745,997,812.70/x
  3. Step 3: Cross multiply
    860,789,068.70x = 1,289,270,415.45 × 745,997,812.70
  4. Step 4: Simplify right side
    860,789,068.70x = 961,792,909,904,520,320
  5. Step 5: Solve for x
    x = 961,792,909,904,520,320/860,789,068.70
  6. Step 6: Final answer
    x = 1,117,338,666.20

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1.5x scale

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.