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Finding the Fourth Proportional to 575,803,645.96, 794,606,638.02 and 311,484,987.45

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Solution

The fourth proportional to 575,803,645.96, 794,606,638.02 and 311,484,987.45 is: 429,847,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,803,645.96 : 794,606,638.02 = 311,484,987.45 : x
  2. Step 2: Convert to fraction form
    575,803,645.96/794,606,638.02 = 311,484,987.45/x
  3. Step 3: Cross multiply
    575,803,645.96x = 794,606,638.02 × 311,484,987.45
  4. Step 4: Simplify right side
    575,803,645.96x = 247,508,038,671,346,368
  5. Step 5: Solve for x
    x = 247,508,038,671,346,368/575,803,645.96
  6. Step 6: Final answer
    x = 429,847,987.95

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