Home / 679,364,642.80-1,017,535,309.80-558,432,290.80

Finding the Fourth Proportional to 679,364,642.80, 1,017,535,309.80 and 558,432,290.80

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Solution

The fourth proportional to 679,364,642.80, 1,017,535,309.80 and 558,432,290.80 is: 836,405,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,364,642.80 : 1,017,535,309.80 = 558,432,290.80 : x
  2. Step 2: Convert to fraction form
    679,364,642.80/1,017,535,309.80 = 558,432,290.80/x
  3. Step 3: Cross multiply
    679,364,642.80x = 1,017,535,309.80 × 558,432,290.80
  4. Step 4: Simplify right side
    679,364,642.80x = 568,224,574,021,501,632
  5. Step 5: Solve for x
    x = 568,224,574,021,501,632/679,364,642.80
  6. Step 6: Final answer
    x = 836,405,868.40

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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.