Finding the Fourth Proportional to 498,238,117.80, 747,357,176.70 and 268,655,605.80
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Solution
The fourth proportional to 498,238,117.80, 747,357,176.70 and 268,655,605.80 is: 402,983,408.70
Step by Step Solution
- Step 1: Write the proportion equation
498,238,117.80 : 747,357,176.70 = 268,655,605.80 : x - Step 2: Convert to fraction form
498,238,117.80/747,357,176.70 = 268,655,605.80/x - Step 3: Cross multiply
498,238,117.80x = 747,357,176.70 × 268,655,605.80 - Step 4: Simplify right side
498,238,117.80x = 200,781,695,055,316,160 - Step 5: Solve for x
x = 200,781,695,055,316,160/498,238,117.80 - Step 6: Final answer
x = 402,983,408.70
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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.