Home / 1,085,554,669.68-1,624,223,065-643,134,967.92

Finding the Fourth Proportional to 1,085,554,669.68, 1,624,223,065 and 643,134,967.92

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Solution

The fourth proportional to 1,085,554,669.68, 1,624,223,065 and 643,134,967.92 is: 962,268,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,554,669.68 : 1,624,223,065 = 643,134,967.92 : x
  2. Step 2: Convert to fraction form
    1,085,554,669.68/1,624,223,065 = 643,134,967.92/x
  3. Step 3: Cross multiply
    1,085,554,669.68x = 1,624,223,065 × 643,134,967.92
  4. Step 4: Simplify right side
    1,085,554,669.68x = 1,044,594,648,803,698,944
  5. Step 5: Solve for x
    x = 1,044,594,648,803,698,944/1,085,554,669.68
  6. Step 6: Final answer
    x = 962,268,117.84

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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.