Home / 1,185,526,748.16-1,778,128,688.16-312,054,973.20

Finding the Fourth Proportional to 1,185,526,748.16, 1,778,128,688.16 and 312,054,973.20

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Solution

The fourth proportional to 1,185,526,748.16, 1,778,128,688.16 and 312,054,973.20 is: 468,039,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,526,748.16 : 1,778,128,688.16 = 312,054,973.20 : x
  2. Step 2: Convert to fraction form
    1,185,526,748.16/1,778,128,688.16 = 312,054,973.20/x
  3. Step 3: Cross multiply
    1,185,526,748.16x = 1,778,128,688.16 × 312,054,973.20
  4. Step 4: Simplify right side
    1,185,526,748.16x = 554,873,900,129,919,936
  5. Step 5: Solve for x
    x = 554,873,900,129,919,936/1,185,526,748.16
  6. Step 6: Final answer
    x = 468,039,967.04

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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.