Home / 1,323,296,886.12-1,985,160,945.54-390,714,005.22

Finding the Fourth Proportional to 1,323,296,886.12, 1,985,160,945.54 and 390,714,005.22

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Solution

The fourth proportional to 1,323,296,886.12, 1,985,160,945.54 and 390,714,005.22 is: 586,134,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,296,886.12 : 1,985,160,945.54 = 390,714,005.22 : x
  2. Step 2: Convert to fraction form
    1,323,296,886.12/1,985,160,945.54 = 390,714,005.22/x
  3. Step 3: Cross multiply
    1,323,296,886.12x = 1,985,160,945.54 × 390,714,005.22
  4. Step 4: Simplify right side
    1,323,296,886.12x = 775,630,184,038,255,744
  5. Step 5: Solve for x
    x = 775,630,184,038,255,744/1,323,296,886.12
  6. Step 6: Final answer
    x = 586,134,670.29

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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.