Home / 287,154,950.76-430,642,079.64-93,021,324.48

Finding the Fourth Proportional to 287,154,950.76, 430,642,079.64 and 93,021,324.48

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Solution

The fourth proportional to 287,154,950.76, 430,642,079.64 and 93,021,324.48 is: 139,502,719.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,154,950.76 : 430,642,079.64 = 93,021,324.48 : x
  2. Step 2: Convert to fraction form
    287,154,950.76/430,642,079.64 = 93,021,324.48/x
  3. Step 3: Cross multiply
    287,154,950.76x = 430,642,079.64 × 93,021,324.48
  4. Step 4: Simplify right side
    287,154,950.76x = 40,058,896,624,934,440
  5. Step 5: Solve for x
    x = 40,058,896,624,934,440/287,154,950.76
  6. Step 6: Final answer
    x = 139,502,719.76

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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.