Home / 1,430,966,294.16-1,973,401,189.78-928,637,964.28

Finding the Fourth Proportional to 1,430,966,294.16, 1,973,401,189.78 and 928,637,964.28

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Solution

The fourth proportional to 1,430,966,294.16, 1,973,401,189.78 and 928,637,964.28 is: 1,280,655,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,966,294.16 : 1,973,401,189.78 = 928,637,964.28 : x
  2. Step 2: Convert to fraction form
    1,430,966,294.16/1,973,401,189.78 = 928,637,964.28/x
  3. Step 3: Cross multiply
    1,430,966,294.16x = 1,973,401,189.78 × 928,637,964.28
  4. Step 4: Simplify right side
    1,430,966,294.16x = 1,832,575,263,585,029,120
  5. Step 5: Solve for x
    x = 1,832,575,263,585,029,120/1,430,966,294.16
  6. Step 6: Final answer
    x = 1,280,655,785.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.