Home / 860,976,510.68-1,188,185,210.78-484,657,381.32

Finding the Fourth Proportional to 860,976,510.68, 1,188,185,210.78 and 484,657,381.32

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Solution

The fourth proportional to 860,976,510.68, 1,188,185,210.78 and 484,657,381.32 is: 668,848,366.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,976,510.68 : 1,188,185,210.78 = 484,657,381.32 : x
  2. Step 2: Convert to fraction form
    860,976,510.68/1,188,185,210.78 = 484,657,381.32/x
  3. Step 3: Cross multiply
    860,976,510.68x = 1,188,185,210.78 × 484,657,381.32
  4. Step 4: Simplify right side
    860,976,510.68x = 575,862,732,777,363,776
  5. Step 5: Solve for x
    x = 575,862,732,777,363,776/860,976,510.68
  6. Step 6: Final answer
    x = 668,848,366.52

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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.