Home / 476,931,287.70-715,396,931.55-400,403,783.70

Finding the Fourth Proportional to 476,931,287.70, 715,396,931.55 and 400,403,783.70

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Solution

The fourth proportional to 476,931,287.70, 715,396,931.55 and 400,403,783.70 is: 600,605,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,931,287.70 : 715,396,931.55 = 400,403,783.70 : x
  2. Step 2: Convert to fraction form
    476,931,287.70/715,396,931.55 = 400,403,783.70/x
  3. Step 3: Cross multiply
    476,931,287.70x = 715,396,931.55 × 400,403,783.70
  4. Step 4: Simplify right side
    476,931,287.70x = 286,447,638,239,989,888
  5. Step 5: Solve for x
    x = 286,447,638,239,989,888/476,931,287.70
  6. Step 6: Final answer
    x = 600,605,675.55

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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.