Home / 430,806,767,989.72-646,210,152,029.32-143,964,824,481.81

Finding the Fourth Proportional to 430,806,767,989.72, 646,210,152,029.32 and 143,964,824,481.81

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Solution

The fourth proportional to 430,806,767,989.72, 646,210,152,029.32 and 143,964,824,481.81 is: 215,947,236,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,806,767,989.72 : 646,210,152,029.32 = 143,964,824,481.81 : x
  2. Step 2: Convert to fraction form
    430,806,767,989.72/646,210,152,029.32 = 143,964,824,481.81/x
  3. Step 3: Cross multiply
    430,806,767,989.72x = 646,210,152,029.32 × 143,964,824,481.81
  4. Step 4: Simplify right side
    430,806,767,989.72x = 93,031,531,115,264,792,854,528
  5. Step 5: Solve for x
    x = 93,031,531,115,264,792,854,528/430,806,767,989.72
  6. Step 6: Final answer
    x = 215,947,236,737.67

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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.