Home / 1,078,111,681.80-1,487,794,119.72-583,074,389.76

Finding the Fourth Proportional to 1,078,111,681.80, 1,487,794,119.72 and 583,074,389.76

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Solution

The fourth proportional to 1,078,111,681.80, 1,487,794,119.72 and 583,074,389.76 is: 804,642,657.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,111,681.80 : 1,487,794,119.72 = 583,074,389.76 : x
  2. Step 2: Convert to fraction form
    1,078,111,681.80/1,487,794,119.72 = 583,074,389.76/x
  3. Step 3: Cross multiply
    1,078,111,681.80x = 1,487,794,119.72 × 583,074,389.76
  4. Step 4: Simplify right side
    1,078,111,681.80x = 867,494,648,444,255,360
  5. Step 5: Solve for x
    x = 867,494,648,444,255,360/1,078,111,681.80
  6. Step 6: Final answer
    x = 804,642,657.24

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Double scale
Find fourth proportional to 1,078,111,682.80, 1,487,794,121.10 and 583,074,390.76
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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.