Home / 810,119,900.26-1,118,145,312.64-492,512,658.76

Finding the Fourth Proportional to 810,119,900.26, 1,118,145,312.64 and 492,512,658.76

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Solution

The fourth proportional to 810,119,900.26, 1,118,145,312.64 and 492,512,658.76 is: 679,776,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,119,900.26 : 1,118,145,312.64 = 492,512,658.76 : x
  2. Step 2: Convert to fraction form
    810,119,900.26/1,118,145,312.64 = 492,512,658.76/x
  3. Step 3: Cross multiply
    810,119,900.26x = 1,118,145,312.64 × 492,512,658.76
  4. Step 4: Simplify right side
    810,119,900.26x = 550,700,720,808,357,888
  5. Step 5: Solve for x
    x = 550,700,720,808,357,888/810,119,900.26
  6. Step 6: Final answer
    x = 679,776,809.13

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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.