Home / 839,939,643.70-1,259,909,465.55-549,701,998.90

Finding the Fourth Proportional to 839,939,643.70, 1,259,909,465.55 and 549,701,998.90

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Solution

The fourth proportional to 839,939,643.70, 1,259,909,465.55 and 549,701,998.90 is: 824,552,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,939,643.70 : 1,259,909,465.55 = 549,701,998.90 : x
  2. Step 2: Convert to fraction form
    839,939,643.70/1,259,909,465.55 = 549,701,998.90/x
  3. Step 3: Cross multiply
    839,939,643.70x = 1,259,909,465.55 × 549,701,998.90
  4. Step 4: Simplify right side
    839,939,643.70x = 692,574,751,645,865,600
  5. Step 5: Solve for x
    x = 692,574,751,645,865,600/839,939,643.70
  6. Step 6: Final answer
    x = 824,552,998.35

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Double scale
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Similar ratio
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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.