Home / 770,315,911,754.80-1,155,282,926,277.40-260,363,341,716.34

Finding the Fourth Proportional to 770,315,911,754.80, 1,155,282,926,277.40 and 260,363,341,716.34

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Solution

The fourth proportional to 770,315,911,754.80, 1,155,282,926,277.40 and 260,363,341,716.34 is: 390,480,475,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,315,911,754.80 : 1,155,282,926,277.40 = 260,363,341,716.34 : x
  2. Step 2: Convert to fraction form
    770,315,911,754.80/1,155,282,926,277.40 = 260,363,341,716.34/x
  3. Step 3: Cross multiply
    770,315,911,754.80x = 1,155,282,926,277.40 × 260,363,341,716.34
  4. Step 4: Simplify right side
    770,315,911,754.80x = 300,793,323,313,415,898,267,648
  5. Step 5: Solve for x
    x = 300,793,323,313,415,898,267,648/770,315,911,754.80
  6. Step 6: Final answer
    x = 390,480,475,248.40

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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.