Home / 879,716,495.68-1,319,861,386.32-419,594,790.40

Finding the Fourth Proportional to 879,716,495.68, 1,319,861,386.32 and 419,594,790.40

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Solution

The fourth proportional to 879,716,495.68, 1,319,861,386.32 and 419,594,790.40 is: 629,528,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,716,495.68 : 1,319,861,386.32 = 419,594,790.40 : x
  2. Step 2: Convert to fraction form
    879,716,495.68/1,319,861,386.32 = 419,594,790.40/x
  3. Step 3: Cross multiply
    879,716,495.68x = 1,319,861,386.32 × 419,594,790.40
  4. Step 4: Simplify right side
    879,716,495.68x = 553,806,961,749,993,792
  5. Step 5: Solve for x
    x = 553,806,961,749,993,792/879,716,495.68
  6. Step 6: Final answer
    x = 629,528,904.45

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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.