Home / 907,128,215.20-1,360,692,322.80-447,963,191.20

Finding the Fourth Proportional to 907,128,215.20, 1,360,692,322.80 and 447,963,191.20

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Solution

The fourth proportional to 907,128,215.20, 1,360,692,322.80 and 447,963,191.20 is: 671,944,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,128,215.20 : 1,360,692,322.80 = 447,963,191.20 : x
  2. Step 2: Convert to fraction form
    907,128,215.20/1,360,692,322.80 = 447,963,191.20/x
  3. Step 3: Cross multiply
    907,128,215.20x = 1,360,692,322.80 × 447,963,191.20
  4. Step 4: Simplify right side
    907,128,215.20x = 609,540,075,162,828,544
  5. Step 5: Solve for x
    x = 609,540,075,162,828,544/907,128,215.20
  6. Step 6: Final answer
    x = 671,944,786.80

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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.