Home / 1,119,312,557.90-1,679,184,037.65-429,165,989.90

Finding the Fourth Proportional to 1,119,312,557.90, 1,679,184,037.65 and 429,165,989.90

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Solution

The fourth proportional to 1,119,312,557.90, 1,679,184,037.65 and 429,165,989.90 is: 643,831,496.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,312,557.90 : 1,679,184,037.65 = 429,165,989.90 : x
  2. Step 2: Convert to fraction form
    1,119,312,557.90/1,679,184,037.65 = 429,165,989.90/x
  3. Step 3: Cross multiply
    1,119,312,557.90x = 1,679,184,037.65 × 429,165,989.90
  4. Step 4: Simplify right side
    1,119,312,557.90x = 720,648,679,742,341,120
  5. Step 5: Solve for x
    x = 720,648,679,742,341,120/1,119,312,557.90
  6. Step 6: Final answer
    x = 643,831,496.98

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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.