Home / 761,521,285.58-1,050,512,611.15-497,357,907.71

Finding the Fourth Proportional to 761,521,285.58, 1,050,512,611.15 and 497,357,907.71

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Solution

The fourth proportional to 761,521,285.58, 1,050,512,611.15 and 497,357,907.71 is: 686,101,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,521,285.58 : 1,050,512,611.15 = 497,357,907.71 : x
  2. Step 2: Convert to fraction form
    761,521,285.58/1,050,512,611.15 = 497,357,907.71/x
  3. Step 3: Cross multiply
    761,521,285.58x = 1,050,512,611.15 × 497,357,907.71
  4. Step 4: Simplify right side
    761,521,285.58x = 522,480,754,300,043,776
  5. Step 5: Solve for x
    x = 522,480,754,300,043,776/761,521,285.58
  6. Step 6: Final answer
    x = 686,101,313.51

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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.