Home / 286,915,873.75-430,537,812.30-155,768,812.39

Finding the Fourth Proportional to 286,915,873.75, 430,537,812.30 and 155,768,812.39

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Solution

The fourth proportional to 286,915,873.75, 430,537,812.30 and 155,768,812.39 is: 233,742,256.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,915,873.75 : 430,537,812.30 = 155,768,812.39 : x
  2. Step 2: Convert to fraction form
    286,915,873.75/430,537,812.30 = 155,768,812.39/x
  3. Step 3: Cross multiply
    286,915,873.75x = 430,537,812.30 × 155,768,812.39
  4. Step 4: Simplify right side
    286,915,873.75x = 67,064,363,710,959,728
  5. Step 5: Solve for x
    x = 67,064,363,710,959,728/286,915,873.75
  6. Step 6: Final answer
    x = 233,742,256.34

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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.