Finding the Fourth Proportional to 450,217,499.86, 621,319,567.68 and 249,274,373.12
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Solution
The fourth proportional to 450,217,499.86, 621,319,567.68 and 249,274,373.12 is: 344,009,386.11
Step by Step Solution
- Step 1: Write the proportion equation
450,217,499.86 : 621,319,567.68 = 249,274,373.12 : x - Step 2: Convert to fraction form
450,217,499.86/621,319,567.68 = 249,274,373.12/x - Step 3: Cross multiply
450,217,499.86x = 621,319,567.68 × 249,274,373.12 - Step 4: Simplify right side
450,217,499.86x = 154,879,045,740,621,408 - Step 5: Solve for x
x = 154,879,045,740,621,408/450,217,499.86 - Step 6: Final answer
x = 344,009,386.11
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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.