Home / 710,134,547.81-980,015,941.09-396,868,752.55

Finding the Fourth Proportional to 710,134,547.81, 980,015,941.09 and 396,868,752.55

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Solution

The fourth proportional to 710,134,547.81, 980,015,941.09 and 396,868,752.55 is: 547,695,792.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,134,547.81 : 980,015,941.09 = 396,868,752.55 : x
  2. Step 2: Convert to fraction form
    710,134,547.81/980,015,941.09 = 396,868,752.55/x
  3. Step 3: Cross multiply
    710,134,547.81x = 980,015,941.09 × 396,868,752.55
  4. Step 4: Simplify right side
    710,134,547.81x = 388,937,704,021,743,168
  5. Step 5: Solve for x
    x = 388,937,704,021,743,168/710,134,547.81
  6. Step 6: Final answer
    x = 547,695,792.61

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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.