Finding the Fourth Proportional to 478,797,642.08, 660,740,447.44 and 258,781,068.08
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Solution
The fourth proportional to 478,797,642.08, 660,740,447.44 and 258,781,068.08 is: 357,117,712.55
Step by Step Solution
- Step 1: Write the proportion equation
478,797,642.08 : 660,740,447.44 = 258,781,068.08 : x - Step 2: Convert to fraction form
478,797,642.08/660,740,447.44 = 258,781,068.08/x - Step 3: Cross multiply
478,797,642.08x = 660,740,447.44 × 258,781,068.08 - Step 4: Simplify right side
478,797,642.08x = 170,987,118,712,180,320 - Step 5: Solve for x
x = 170,987,118,712,180,320/478,797,642.08 - Step 6: Final answer
x = 357,117,712.55
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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.