Home / 776,892,428.64-1,072,099,039.68-424,460,851.92

Finding the Fourth Proportional to 776,892,428.64, 1,072,099,039.68 and 424,460,851.92

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Solution

The fourth proportional to 776,892,428.64, 1,072,099,039.68 and 424,460,851.92 is: 585,749,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,892,428.64 : 1,072,099,039.68 = 424,460,851.92 : x
  2. Step 2: Convert to fraction form
    776,892,428.64/1,072,099,039.68 = 424,460,851.92/x
  3. Step 3: Cross multiply
    776,892,428.64x = 1,072,099,039.68 × 424,460,851.92
  4. Step 4: Simplify right side
    776,892,428.64x = 455,064,071,725,186,688
  5. Step 5: Solve for x
    x = 455,064,071,725,186,688/776,892,428.64
  6. Step 6: Final answer
    x = 585,749,139.71

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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.