Home / 1,490,170,373.55-2,056,342,457.84-821,077,975.34

Finding the Fourth Proportional to 1,490,170,373.55, 2,056,342,457.84 and 821,077,975.34

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Solution

The fourth proportional to 1,490,170,373.55, 2,056,342,457.84 and 821,077,975.34 is: 1,133,036,551.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,170,373.55 : 2,056,342,457.84 = 821,077,975.34 : x
  2. Step 2: Convert to fraction form
    1,490,170,373.55/2,056,342,457.84 = 821,077,975.34/x
  3. Step 3: Cross multiply
    1,490,170,373.55x = 2,056,342,457.84 × 821,077,975.34
  4. Step 4: Simplify right side
    1,490,170,373.55x = 1,688,417,501,891,389,440
  5. Step 5: Solve for x
    x = 1,688,417,501,891,389,440/1,490,170,373.55
  6. Step 6: Final answer
    x = 1,133,036,551.97

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Double scale
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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.