Home / 896,860,938.30-1,345,291,407.45-858,118,889.40

Finding the Fourth Proportional to 896,860,938.30, 1,345,291,407.45 and 858,118,889.40

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Solution

The fourth proportional to 896,860,938.30, 1,345,291,407.45 and 858,118,889.40 is: 1,287,178,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,860,938.30 : 1,345,291,407.45 = 858,118,889.40 : x
  2. Step 2: Convert to fraction form
    896,860,938.30/1,345,291,407.45 = 858,118,889.40/x
  3. Step 3: Cross multiply
    896,860,938.30x = 1,345,291,407.45 × 858,118,889.40
  4. Step 4: Simplify right side
    896,860,938.30x = 1,154,419,968,480,356,864
  5. Step 5: Solve for x
    x = 1,154,419,968,480,356,864/896,860,938.30
  6. Step 6: Final answer
    x = 1,287,178,334.10

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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.