Home / 1,319,977,698.30-1,979,966,547.45-707,757,666.30

Finding the Fourth Proportional to 1,319,977,698.30, 1,979,966,547.45 and 707,757,666.30

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Solution

The fourth proportional to 1,319,977,698.30, 1,979,966,547.45 and 707,757,666.30 is: 1,061,636,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,977,698.30 : 1,979,966,547.45 = 707,757,666.30 : x
  2. Step 2: Convert to fraction form
    1,319,977,698.30/1,979,966,547.45 = 707,757,666.30/x
  3. Step 3: Cross multiply
    1,319,977,698.30x = 1,979,966,547.45 × 707,757,666.30
  4. Step 4: Simplify right side
    1,319,977,698.30x = 1,401,336,502,975,280,128
  5. Step 5: Solve for x
    x = 1,401,336,502,975,280,128/1,319,977,698.30
  6. Step 6: Final answer
    x = 1,061,636,499.45

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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.