Home / 1,281,418,777.08-1,768,426,572.63-716,869,980.78

Finding the Fourth Proportional to 1,281,418,777.08, 1,768,426,572.63 and 716,869,980.78

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Solution

The fourth proportional to 1,281,418,777.08, 1,768,426,572.63 and 716,869,980.78 is: 989,318,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,418,777.08 : 1,768,426,572.63 = 716,869,980.78 : x
  2. Step 2: Convert to fraction form
    1,281,418,777.08/1,768,426,572.63 = 716,869,980.78/x
  3. Step 3: Cross multiply
    1,281,418,777.08x = 1,768,426,572.63 × 716,869,980.78
  4. Step 4: Simplify right side
    1,281,418,777.08x = 1,267,731,923,132,109,312
  5. Step 5: Solve for x
    x = 1,267,731,923,132,109,312/1,281,418,777.08
  6. Step 6: Final answer
    x = 989,318,984.40

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Double scale
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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.